Activewear Development Process: From Tech Pack to Bulk Production
MOVEVOX delivers disciplined activewear product development, transforming technical design sketches and spec sheets into bulk-ready garments. Backed by an in-house pattern-making room, dedicated sample floor, and 28 Santoni seamless knitting machines, we eliminate fit revision cycles and ensure production reproducibility under strict AQL benchmarks.
- 5–10 working days rapid physical prototype turnaround once technical specifications freeze
- In-house athletic pattern engineers with 8–10 years dedicated stretch-wear expertise
- Seamless 3D digital programming paired with specialized 4-needle 6-thread flatlock assembly
Dedicated Sample Floor with 2 pattern masters, 4 sample tailors, and 28 Santoni seamless machines.
What Defines True Activewear Product Development?
Understanding why performance athletic apparel development requires kinetic pattern engineering rather than standard garment tailoring.
Activewear development is an applied physical science integrating kinetic body mapping, fabric stretch mechanics, and industrial reproducibility. MOVEVOX operates a dedicated R&D division comprising 2 CAD pattern masters, 4 sample makers, and Santoni programming specialists. We evaluate seam tensile loads, fabric recovery, and bulk production constraints before cutting, eliminating sample drift and costly production re-dos across OEM activewear and ODM activewear programs.
Kinetic Biomechanics Engineering
Calibrating negative ease across joint lines to eliminate seam binding and fabric bunching during dynamic multi-planar movement.
Fabric Stretch Adaptation
Testing four-way elongation, modulus recovery, and wash shrinkage before drafting pattern lines on custom fabrics.
DFM Feasibility Auditing
Reviewing seam allowances, stitch density, and trim ergonomics within 24 hours of intake to ensure seamless mass-line reproducibility.
Closed-Loop Handover SOP
Locking master tech packs, stitch SPI counts, and physical golden samples into ERP before releasing bulk cutting orders.
Activewear R&D Key Numbers & Resource Snapshot
Verified technical workforce, specialized machinery, and material assets dedicated exclusively to athletic sample development.
Dedicated staff including 2 designers, 2 pattern masters, and 4 tailors.
Working days standard turnaround once technical specifications freeze.
Italian circular knitting machines for digital 3D seamless prototyping.
Specialized flatlock, overlock, coverstitch, and bartack machines.
Curated performance swatches in nylon, polyester, and GRS recycled fibers.
Dedicated sample room operates independently from bulk production lines in our Yiwu facility.
Tailored Development Programs by Brand Maturity
Whether you arrive with a complete technical package, physical reference garments, or visual concepts, our engineering team adapts to your development workflow.
Full Tech Pack Execution
Direct intake of your digital AI or PDF tech packs. We execute rapid DFM verification, raw material reservation, and deliver physical prototypes in 5–7 working days.
- 24-hour DFM feasibility feedback
- Exact POM measurement conformity
- Synchronized size grading validation
Concept & Sketch Translation
Our lead pattern masters translate hand-drawn illustrations, flat sketches, or moodboards into digital CAD patterns, structural seam lines, and material recommendations.
- Professional CAD pattern digitizing
- Seam placement and trim advisory
- Target fabric pairing and swatch kits
Collection Platform R&D
Engineered for brands launching coordinated capsules across yoga sets, sports bras, and leggings, utilizing shared fabric platforms to minimize component MOQs.
- Coordinated top-and-bottom dyeing
- Shared trim and packaging systems
- Multi-SKU synchronized launch calendar
Sample Deconstruction & Upgrade
Send us your existing bestseller or reference sample. We deconstruct panel geometry, analyze yarn composition, and engineer improved squat-proof opacity and fit hold.
- Reverse engineering of physical garments
- Opacity and recovery enhancement
- Waistband anti-roll structural upgrade
4 Critical R&D Bottlenecks in Activewear Sourcing
Athletic apparel development frequently stalls due to poor technical interpretation and disconnected sample rooms. Here is how our engineered workflow resolves typical sourcing friction.
Endless Fit Revision Cycles
Impact: Sample makers miscalculate high-stretch fabric recovery, requiring 4–5 sample iterations that delay product launches by months.
Our Control: Senior pattern masters with 8–10 years stretch experience conduct digital CAD modeling and dynamic athletic wear tests on calibrated fit models.
Sample-to-Bulk Quality Degradation
Impact: Prototypes hand-crafted by master tailors cannot be replicated on automated mass-production lines, causing widespread bulk sizing defects.
Our Control: All prototypes undergo Design for Manufacturability (DFM) verification; stitch tensions and SPI rates are locked directly into production work orders.
Uncalibrated Shrinkage & Sheerness
Impact: Prototypes made from unwashed fabric swatches shrink excessively upon first laundering, while lighter colors become sheer during deep squats.
Our Control: Mandatory in-house laundering shrinkage tests (AATCC 135) and 100% illuminated stretch opacity audits before pattern release.
Seam Snapping under High Stress
Impact: Standard 3-thread overlock seams fail under athletic extension, resulting in embarrassing crotch blowouts and brand reputational damage.
Our Control: Enforcing 4-needle 6-thread flatlock assembly, diamond crotch gussets, and programmable bartack reinforcements across all mechanical stress zones.
Multi-Format Development Intake: 4 Ways to Start Prototyping
Select your starting technical format. Our engineering room accommodates tech packs, physical garments, sketches, or material swatches.
Full Digital Tech Pack
We audit your complete digital pack, verify tolerance windows, confirm BOM materials, and program sample machines for rapid 5–7 day prototyping.
Requires: Vector flat sketch, measurement table, BOM, and artwork files.
Incomplete Specification
Our engineers help you complete missing parameters, recommending fabric GSM, knit constructions, SPI standards, and graded measurement charts.
Requires: Basic sketch or photo, rough target dimensions, and fabric vision.
Physical Reference Sample
Ship your physical sample to our Yiwu center. We deconstruct panel contours, test yarn composition, and digitize a 1:1 reproduction or upgraded pattern.
Requires: Physical reference garment and written enhancement requests.
Hand Sketches & Moodboards
Our design division translates creative concepts into production flats, providing digital 3D styling and fabric mapping ready for prototyping.
Requires: Concept illustrations, target customer profile, and reference photos.
Development Input Checklist: What We Need for Accurate Prototyping
Ensure your activewear technical files contain the critical parameters required to deliver an accurate first prototype without unnecessary delay.
Mandatory Technical Files
- Technical Flat Sketch: Clear front, back, and interior views highlighting seams and cutouts.
- Critical POM Table: Measurement specifications for the base sample size with tolerances.
- Fabric Specification: Target fiber composition, fabric weight (GSM), and handfeel finish.
- Color Reference: Pantone TCX/TPX codes or physical fabric swatches for lab dip matching.
- Brand Artwork: High-resolution vector files (AI, SVG, or PDF) for logos and placements.
Recommended Project Parameters
- Bill of Materials (BOM): Specifications for zippers, drawcords, elastic bands, and bra cups.
- Stitch Construction: Stated seam preferences (Flatlock, 4-thread overlock, or bonded edges).
- Target Market Sizing: Indication of US, European, UK, or Asian body fit standards.
- Label & Packaging Specs: Artwork for custom labels and custom packaging.
- Commercial Targets: Estimated bulk order quantities, target FOB price, and delivery window.
24-Hour DFM & Technical Feasibility Review System
Every activewear package undergoes a rigorous Design for Manufacturability audit within 24 hours of receipt, categorizing risks across three clear tiers.
Level Green: Full Feasibility Approved
The tech pack is technically complete, seam construction matches fabric stretch modulus, and materials are readily sourceable. Pattern drafting and sample cutting are scheduled immediately.
Level Yellow: Engineering Optimization Advised
Minor structural friction identified—such as bulky seam intersections in high-rubbing inner thighs or excessive waistband tension. Our team provides annotated alternative engineering proposals for client sign-off.
Level Red: Critical High-Risk / Non-Manufacturable
The design violates fabric mechanics—such as placing heavy embroidery across maximum-stretch glute zones or specifying rigid hardware along sports bra underbands. We issue a technical query with viable redesign options.
Computerized CAD Pattern Making & Kinetic Grading
Our dedicated pattern room employs specialized activewear CAD systems to draft ergonomic contours calibrated specifically to four-way stretch fabrics.
Master Base Size Engineering
Unlike rigid apparel, high-stretch activewear requires precise negative ease calibration. If negative ease is too tight, the fabric becomes sheer; if too loose, the garment sags during movement.
Our lead pattern masters calculate elongation recovery curves across length and width, drafting master base patterns (typically Size Small or Medium) that contour human anatomy while preserving fabric modesty and compression.
Non-Linear Athletic Size Grading
Standard linear grading fails on athletic bodies because muscle mass and body volume do not expand in simple straight lines. When grading sports bras and leggings from XS to 2XL, we apply custom non-linear grade rules.
We adjust waistband rises, underbust band tensions, and crotch curve depths disproportionately across larger sizes, ensuring a 2XL legging delivers the same supportive fit as an XS without roll-down or pinching.
Kinetic Motion Fit & Virtual Dynamic Simulation
Static mannequin fittings cannot reveal athletic mobility flaws. We validate every prototype through dynamic motion verification across four critical stress postures.
Deep Squat & Hip Flexion
Validating rear waistband grip and rear crotch rise elongation to ensure waistbands do not slide down or expose the lower back during maximal knee flexion.
Overhead Reach & Arm Rotation
Testing sports bra underband stability and tank top armholes during pull-ups and presses, confirming underbands anchor firmly without riding up.
Inverted Pose & Torso Twists
Verifying bra cup modesty and neckline tension during yoga handstands and spinal twists to ensure cups remain flush against breast tissue without gaping.
Repetitive Stride & Sprints
Auditing inner-thigh friction and crotch gusset seams during rapid running cycles, ensuring flatlock stitching lies completely flat to eliminate skin chafing.
3D Seamless Machine Programming on Santoni Cylinders
Operating 28 Italian Santoni circular knitting machines, our programming engineers compile digital code that knits multi-density structures directly from yarns.
Computerized Needle Selection
Compiling individual needle selection matrixes to transition seamlessly from supportive double-layer ribbing to open mesh ventilation on a single cylinder run.
Zoned Body-Mapping Knitting
Varying elastane tension and loop density to engineer targeted muscle containment across the quads, glutes, and waist with zero added cut-and-sew panels.
Knit-In Jacquard Branding
Knitting high-contrast logo typography and geometric patterns directly into the garment surface using solution-dyed yarns for permanent, rub-free branding.
Engineered Eyelet Mesh Zones
Creating breathable open-loop eyelets mapped to high-perspiration zones along the spine and underarms, delivering active cooling without hole fraying.
Pre-Distortion CAD Compensation
Calculating 3D human stretch vectors to digitally pre-distort jacquard artwork in machine code so logos look perfectly proportioned once worn on the body.
Electronic Feeder Calibration
Electronic multi-feed yarn tension controllers maintain microscopic loop consistency, eliminating barre lines and ensuring left-and-right leg length symmetry.
Activewear Fabric Formulation & Material R&D Matrix
We curate and formulate over 1,500 activewear fabrics and yarns, rigorously auditing four-way stretch, recovery modulus, and opacity before prototype cutting.
ButterSoft™ Naked-Feel Nylon
75% Nylon 66, 25% Spandex | 220–240 GSM
Dual-side micro-peached surface delivers soft-touch comfort while maintaining ≥92% elastic recovery over repeated machine washes. Ideal for studio yoga leggings and bralettes.
Buttery touch, matte finish, low-friction skin contact.
SculptFlex™ High-Recovery Interlock
78% Nylon, 22% Spandex | 260–280 GSM
Dense 36-gauge warp interlock structure prevents fabric grin-through and white-out under extreme glute extension. Formulated for heavy gym lifting and compression tights.
Squat-proof hold, high-gauge interlock, anti-pilling.
EcoMove™ GRS Recycled Polyamide
75% Recycled Nylon, 25% Spandex | 230 GSM
Sourced from qualified recycled yarn mills with verifiable GRS transaction scopes, offering soft handfeel, sweat dispersion, and verified sustainability credentials.
Certified recycled content, quick-drying, Grade 4+ fastness.
AeroDry™ 4-Way Stretch Woven
88% Polyester, 12% Spandex | 140 GSM
Ultra-lightweight four-way stretch woven fabric with water-repellent treatment, delivering unrestricted squat mobility and rapid surface drying for training shorts.
Featherlight handfeel, DWR water-repellent, rapid drying.
Zero-Deviation Dyeing & Lab Dip Color Control Protocol
Resolving activewear's most persistent color issues through spectral formulation, standard light-box audits, and synchronized batch dyeing.
Pantone Standard Lock
Client provides Pantone TCX/TPX code or physical fabric swatch for spectral baseline analysis.
Lab Dip Formulation
We produce 3-option lab dips (A/B/C shades) on target fabric within 3–5 working days for client review.
D65 Light Box Review
Dips are examined under D65, TL84, and UV light sources to eliminate metamerism under retail lighting.
Same-Lot Batch Sync
Top and bottom fabrics are dyed in synchronized dye lots, guaranteeing zero shade mismatch on sets.
Colorfastness Testing
Verifying washfastness, perspiration fastness, and dry/wet crocking to ensure Grade 4.0+ ratings.
Master Swatch Seal
Physical approved swatches are sealed and archived to benchmark all future repeat order production.
Trims, Hardware & Elastic Component Engineering
We engineer every secondary trim component to withstand high moisture, heavy mechanical friction, and industrial laundry cycles.
3D High-Density Silicone Logos
Matte micro-raised silicone transfers applied under digital temperature calibration, engineered to stretch with performance fabrics without cracking.
Non-Slip Silicone Waist Grippers
Laser-applied silicone micro-dots or screen-printed interior strips that anchor waistbands and short hems securely against the skin without rolling.
Concealed Auto-Lock Zippers
Inverted coil zippers with semi-automatic locking sliders that lie flush against hips, engineered with protective garages to prevent skin pinching.
Laser-Engraved Metal Aglets
Gunmetal and matte zinc alloy cord tips with laser-etched brand typography, corrosion-resistant and tested to withstand high-spin laundry cycles.
High-Modulus Elastic Webbing
Heavy-denier core elastic bands for bra underbands and waistbands, maintaining ≥95% recovery modulus after 5,000 cyclic extension tests.
Breathable Perforated Bra Cups
Honeycomb perforated removable foam pads that provide natural shaping and support while allowing rapid sweat evaporation and zero wash crumpling.
Heavy-Stress Seam Construction & Reinforcement Standards
We calibrate stitch density, needle sizing, and thread tensions across every joint, engineering durability that stands up to aggressive gym workouts.
4-Needle 6-Thread Flatlock
Executed at 10–12 stitches per inch (SPI) using high-stretch woolly nylon looper threads, delivering zero-bulk, chafe-free interior surfaces that stretch without bursting.
Programmable Bartack Anchors
High-density computer bartacks installed at pocket corners, side splits, and zipper ends, increasing seam tear resistance by up to 300% under shear loads.
Diamond Crotch Gusset Assembly
Eliminating 4-way cross-seam intersections by inserting an anatomical diamond gusset, dispersing squat tension across 4 independent flatlock seams.
Differential Feed Overlock
Specialized 4-thread differential overlock lines calibrated for stretch knitwear, preventing wavy edges and ensuring clean, encapsulated raw seams.
Ultrasonic Heat-Welded Hems
High-polymer bonding films fused under pneumatic heat presses to create ultra-lightweight, stitch-free hems that lie flat and eliminate curling after washing.
Anti-Chafe Collar Binding
Ultra-thin stretch binding tape folded over collar and armhole edges, eliminating skin abrasion during marathon runs and high-repetition aerobic training.
In-House Physical & Chemical Testing Laboratory
Prototypes and production dye lots undergo verified physical and chemical audits in our laboratory to substantiate performance claims before commercial release.
Dimensional Stability (AATCC 135)
Method & Standard: 5 consecutive commercial wash and dry cycles.
Target Threshold: Dimensional variance held strictly within ±3.0% across length and width, ensuring fit consistency over consumer lifespans.
Perspiration Fastness (AATCC 15)
Method & Standard: Acidic and alkaline synthetic sweat immersion under heat.
Target Threshold: Grayscale evaluation requires Grade 4.0 or above for color change and multifiber staining, preventing dye migration.
Elastic Recovery (ASTM D2594)
Method & Standard: High-stretch fabric loop extension under constant mechanical load.
Target Threshold: High-stretch activewear must achieve ≥92% recovery after 30-minute rest, eliminating sagging waistbands and bagging knees.
Pilling Resistance (ISO 12945-2)
Method & Standard: Martindale multi-directional abrasion rubbing testing.
Target Threshold: Grade 4.0 or above after 2,000 continuous rubs, ensuring fabrics resist fuzzing and fiber breakage against knurled barbells.
Stage-by-Stage Prototyping: 4 Samples with Clear Approval Gates
We structure prototyping across four distinct milestones, each fulfilling specific verification objectives to prevent design errors from reaching mass cutting.
Sample 01: 1st Proto Sample (Conceptual Validation)
Constructed to evaluate raw silhouette proportions, panel ergonomics, and construction feasibility. In-stock fabrics with similar weight and stretch are utilized to expedite initial physical review.
Objective: Verify silhouette aesthetics, seam lines, and pattern geometry.
Sample 02: Fit Sample (Athletic Fit & Negative Ease)
Crafted using target four-way stretch fabric to evaluate dynamic athletic fit on live fit models. Evaluates waistband hold, bust support, negative ease, and athletic mobility across extreme postures.
Objective: Lock base-size fit, adjust rise curves, and finalize POM table.
Sample 03: Size Set Sample (Grading Curve Verification)
Prototyping full size runs (e.g. XS, S, M, L, XL, 2XL) to ensure non-linear grade rules expand proportionally on real bodies without distorting compression hold on larger sizes.
Objective: Validate grading curves across all consumer body profiles.
Sample 04: Pre-Production (PP) Sample (Golden Production Standard)
Assembled using 100% bulk-intended fabric rolls, exact Pantone dyed lots, production silicone logos, and retail packaging. Serves as the immutable Golden Benchmark for bulk line inspection.
Objective: Final sign-off and complete production parameter freeze.
Systematic Fit Review & Root Cause Revision Protocol
We translate subjective fit feedback into precise pattern adjustments and material revisions through systematic engineering root-cause analysis.
Legging waistband rolls down during deep squats and bending.
Insufficient negative ease at waist top combined with inadequate back-crotch rise curve depth.
Deepen back rise by +1.5cm, tighten top waistband circumference by -2.0cm, and insert high-modulus inner core elastic.
Sports bra underband digs uncomfortably into ribcage causing breathing restriction.
Underband elastic modulus is excessively rigid, lacking sufficient elongation under chest expansion.
Re-specify lower-tension, higher-recovery microfilament elastic webbing; widen band width to distribute pressure evenly.
Front crotch displays pulling lines and fabric bunching during lunges.
Traditional center front seam creates rigid cross point that restricts lateral fabric stretch.
Transition to seamless no-front-seam pattern construction and incorporate an anatomical diamond crotch gusset.
Transparent Prototyping Lead Times & SLA Commitments
We honor strict Service Level Agreements (SLAs) for activewear prototyping, ensuring your seasonal marketing drops and photo-shoot deadlines remain on schedule.
DFM Technical Review
Digital tech pack audit, seam allowance evaluation, and technical query list confirmed within 24 hours.
Material Sourcing
In-stock fabric allocation or lab-dip formulation; custom silicone transfer molds and trims ordered.
CAD & Machine Code
CAD pattern grading completed; Santoni 3D circular knitting programs compiled and verified on sample machine.
Assembly & Branding
Sample room precision cutting, flatlock stitching, diamond gusset insertion, and logo heat-pressing.
QC & Express Dispatch
100% full-dimension POM measurement audit, dynamic fit testing, steam finishing, and DHL/FedEx dispatch.
Ready to Accelerate Your Activewear Prototyping Cycle?
Send us your Tech Pack, design sketches, or reference sample today. Our engineering team will deliver a comprehensive DFM review, fabric options, and cost breakdown within 24 business hours.
Mutual NDA Supported | 5–10 Days Prototyping SLA | Sample Fee Creditable Against Bulk Orders
Zero-Variance Handover: Transitioning Samples to Bulk Production
Sourcing leaders frequently experience the "perfect sample, flawed bulk" dilemma. MOVEVOX prevents bulk degradation through strict physical and digital handover protocols.
Physical Golden Sample Archiving
Upon client approval, three identical Golden Samples are sealed—one archived with the client, one preserved in our QA library, and one mounted on the workshop floor for inline operator benchmark comparison.
- 100% matched bulk fabric roll benchmarking
- Approved logo adhesion and placement seal
- Physical stretch recovery comparison standard
Digital Master Spec Lock in ERP
All technical parameters—including stitch density (SPI), differential feed tension, heat-press temperature/time, and CAD cut markers—are locked into our production ERP system to eliminate operator deviation.
- Immutable CAD cutting marker files
- Sewing line machine tension calibration cards
- Mandatory Pre-Production line meeting sign-off
Case Study: Re-Engineering a High-Performance Activewear Line
How MOVEVOX solved persistent waistband rolling, eliminated crotch seam failures, and achieved 100% squat-proof opacity for an expanding activewear brand.
The Engineering Challenge
An established activewear label selling direct-to-consumer and through fitness exhibitions across Europe and North America faced serious technical inconsistencies across size curves. Legging waistbands rolled downward during dynamic yoga inversions due to improper negative ease calculation. Furthermore, crotch seams ruptured during deep barbell squats, and lighter pastel colorways exhibited severe sheerness, driving consumer returns to an unsustainable 11.4%.
The MOVEVOX Engineering Solution
MOVEVOX re-engineered the product line from the yarn level up. We compiled custom 3D knit programs on our Santoni machines, integrating high-tension air-covered elastane to double the waistband recovery modulus. We incorporated an anatomical diamond crotch gusset joined with 4-needle 6-thread flatlock stitching and programmable bartack reinforcements. For fabric opacity, we reformulated the knit density to 270 GSM, verifying zero light transmission on our illuminated stretch test fixture.
"MOVEVOX transformed our product line. Their technical team identified our waistband flaws immediately, delivered flawless prototypes in one week, and scaled our bulk production without a single seam defect."
— VP of Product & Design, Technical Activewear LabelWhy Choose MOVEVOX: Activewear R&D Supplier Benchmark Matrix
Evaluate how our dedicated engineering center, machine infrastructure, and zero-variance protocols compare with common industry alternatives.
| R&D & Engineering Dimension | MOVEVOX | Sourcing Brokers / Traders | Small Cut & Sew Workshops | Massive Apparel Conglomerates |
|---|---|---|---|---|
| In-House Sample Room | Dedicated R&D center with 8 specialists | Zero in-house sample tailors | 1–2 sample tailors (shared with bulk) | High-capacity (rigid scheduling) |
| In-House Pattern Masters | 2 dedicated CAD masters (8–10y exp) | Outsourced to freelance pattern shops | Traditional manual paper patterns | Corporate CAD teams (slow intake) |
| Dual-Craft Integration | Seamless (28 Santoni) + Cut & Sew in-house | Split across disconnected subcontractors | Cut & sew only (no seamless machinery) | Siloed independent factory divisions |
| Prototyping Lead Time | 5–10 working days post-spec freeze | 20–30 working days | Unpredictable timeline | 30–45 working days |
| In-House Lab Testing | AATCC shrinkage, stretch, crocking, opacity | No in-house testing equipment | Visual inspection only | Certified lab (high testing fees) |
| Spec Freeze & Bulk Handover | Locked digital ERP parameters + sealed PP | No formal handover protocols | Verbal communication to line operators | Strict protocol (high bureaucracy) |
| Bestseller Restocking Speed | 15–20 days rapid repeat fulfillment | 45–60 days lead time | Frequent capacity bottlenecks | 60–90 days seasonal booking slots |
Technical Development & Prototyping FAQ
Direct engineering answers regarding our prototyping turnaround, CAD grading, material testing, and intellectual property protection workflows.
How fast can you deliver physical prototypes from our tech pack?
Once your technical package, BOM specifications, and target materials are confirmed, our standard prototype turnaround is strictly 5–10 working days for both seamless knitwear and cut-and-sew garments.
What is your sample development cost and credit policy?
Standard prototyping fees are USD 100 per piece for seamless knitting and USD 120–150 per piece for cut-and-sew apparel. These development costs are 100% creditable against your bulk production invoice once bulk orders reach 500–1,000 units.
Can you develop custom activewear if we only have sketches or a physical sample?
Yes. Our in-house technical team can digitize flat hand sketches or deconstruct physical reference garments, reverse-engineering exact seam placements, panel geometry, and yarn formulations into production-ready CAD patterns.
How do you ensure bulk production matches the approved PP sample?
We enforce a formal Specification Freeze upon Pre-Production sample sign-off. Golden Samples are sealed in triplicate, sewing machine tensions are locked into our ERP system, and mass assembly begins only after a 100% First Article Inspection audit.
Can you handle both seamless circular knitting and cut-and-sew apparel?
Yes. We operate 28 Italian Santoni circular knitting machines and ~24 specialized sewing assembly stations in our owned Yiwu facility, allowing brands to develop seamless baselayers, high-waist leggings, sports bras, and woven shorts under one roof.
How do you manage custom Pantone color matching and lab dips?
We produce 3-option lab dips (A/B/C shades) within 3–5 working days based on your Pantone TCX/TPX code. All shades are evaluated under D65, TL84, and UV light boxes, and top-and-bottom fabrics are dyed in synchronized lots to prevent shade mismatch.
Do you perform physical and chemical safety testing on samples?
Yes. Our in-house lab tests wash shrinkage (AATCC 135), perspiration colorfastness (AATCC 15), elastic recovery (ASTM D2594), and Martindale abrasion (ISO 12945-2). Chemical safety complies with EU RoHS 2.0 and REACH Annex XVII standards.
What size range can your pattern team develop and grade?
Our pattern masters develop and grade activewear patterns from XS through 2XL, implementing non-linear grade rules that preserve proper compression hold, modesty coverage, and waistband stability across diverse athletic body curves.
How do you protect our proprietary designs and intellectual property?
We routinely execute formal mutual Non-Disclosure Agreements (NDA) before receiving technical files. Client designs, tech packs, and unreleased seasonal developments are strictly sequestered and never displayed on public channels.
What is your bulk production lead time after sample sign-off?
Regular bulk manufacturing takes approximately 20–35 days following Pre-Production (PP) sample approval and deposit receipt. High-volume repeat orders can be expedited within 15–20 days through our reserved raw material programs.
Turn Your Activewear Concept into a Flawless Production Sample This Week
Partner with an activewear manufacturer that treats technical development as a physical engineering science. Upload your specifications today for a confidential DFM feasibility review and transparent BOM cost breakdown within 24 business hours.
Request DFM Feasibility Review
Submit your Tech Pack for comprehensive engineering analysis, fabric evaluation, and BOM costing within 24 hours.
Order Custom Prototype
Experience our physical fabric touch, athletic pattern engineering, and anti-burst seamwork with a 5–10 day custom sample.
Book Technical Video Meeting
Schedule a live video conference with our lead pattern maker and General Manager Jerry to review your tech pack.
Submit Your Project Brief & Tech Pack
Provide your collection specifications below. All files are protected under strict mutual Non-Disclosure Agreements.
Commercial & Legal Credentials: Legal Entity: Yiwu Chenjin Import And Export Co., Ltd. | Official Email: lzmwwx@gmail.com | Official WhatsApp: +86 151 0555 8361 | Response Time: Within 2–4 Business Hours (07:00–24:00 CST) | All uploads protected under strict NDA.
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