Custom 4-Way Stretch Bike Shorts Manufacturer for Activewear Brands
Bike shorts are judged on two things that are easy to get wrong and hard to forgive — stretch that recovers, and a hem that stays put. A short that rides up the thigh or goes sheer at the seat fails in the first ten minutes, no matter how good the colourway looks on the rail.
Passion Activewear manufactures custom 4-way stretch bike shorts from Quanzhou Passion Clothing Co., Ltd., operating since 1999 across 10 production lines with 150,000 pieces of monthly capacity — so a full size run can be built, opacity-tested and finished on one programme rather than outsourced in pieces.
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01
4-Way Stretch, 180–250% Elongation
Knit engineered to stretch and recover on every axis, so the short holds its shape through a full pedal stroke and squat.
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02
Opacity Tested Under Stretch
Each batch checked for sheerness at the seat and thigh when pulled to working stretch, not just laid flat.
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03
Double-Needle No-Roll Hems
Reinforced hem finishing that stays flat against the thigh instead of curling up mid-session.
What We Manufacture in This Category
- Buttery-Soft Fabric Yoga Tops — brushed peach-skin tops in longline and cropped silhouettes.
- Compression Crop Top Sets — matched crop top and legging sets engineered as one colour story.
- Compression Sports Bras — low, medium and high impact bras with graded support and bonded seams.
- Compression Tights — squat-proof, high-stretch tights graded for training and studio wear.
- Slim-Fit Yoga Jackets — lightweight layering jackets with four-way stretch and clean zip detailing.
- Squat-Proof Leggings — opaque leggings tested under stretch with no sheerness at the knee or seat.
- V-Shape High-Waisted Capris — contoured high-rise capris with a supportive V-seam waistband.
Request a Custom Sample
We currently develop 4-way stretch bike shorts to customer specification rather than from a fixed catalogue, so the fastest route is a development sample built to your technical pack. Send us your tech pack, a reference garment, or a set of performance requirements — stretch percentage, inseam, opacity target and branding — and we will engineer a prototype on our lines.
Sampling runs 7–15 business days after design confirmation. Once the development sample is approved, bulk production follows at 25–45 business days, with the same 1,000 pcs per style per colourway minimum applied. We are happy to work from a competitor short you admire or a simple sketch; either way the first physical sample is the reference both sides sign off on.
Request a Custom SampleFabric & Construction Engineering
The no-roll hem and the opacity result are downstream of two upstream choices: the knit’s recovery, and the seam and hem finishing. We control both, so the short behaves the same on the first ride and the fiftieth.
- Main Fabric
- Polyester or nylon-spandex 4-way knit, 200–240 gsm, 180–250% elongation with full recovery
- Alternative Fabrics
- Recycled poly-spandex (rPET) 4-way base, brushed soft-face option, or lighter 180 gsm for low-impact wear
- Moisture Management
- Wicking finish with documented dry-rate; mesh vent panel optional at the thigh or back yoke
- Printing Techniques
- Full sublimation on white base, tonal screen print, heat-transfer and silicone logo application
- Embroidery
- Low-profile multi-head embroidery for small leg marks; flat sublimated branding preferred for soft-hand feel
- Hardware
- Encased wide waistband, double-needle no-roll hem, bartack at all stress points, optional hidden pocket
- Size Range
- Women’s and men’s XS–3XL, graded inseam 5–9 in, custom size charts supported
- Quality Standard
- In-line inspection at every stage plus AQL 2.5 final random inspection before packing
Build details for no-roll bike shorts
- Opacity check under stretch at the seat and thigh, so the short stays non-sheer when pulled to working length.
- Double-needle hem finished to lie flat against the thigh instead of curling up mid-session.
- Recovery-tested knit so the short returns to shape after a full pedal stroke and squat, not just when laid flat.
- Encased wide waistband graded for hold without digging, with a clean interior.
- Flatlock or bonded seams selected per panel to remove chafe points against skin during long rides.
For new short programmes: send the performance target rather than a finished spec — stretch percentage, inseam and opacity — and we will propose the knit, the hem and the waistband that meet it, then prove it with a development sample you can ride in.
Why Brands Develop Bike Shorts With Us
Stretch you can specify, not guess
We set the elongation and recovery as measured numbers — 180–250% with documented bounce-back — so the short you approve is the short that ships, batch after batch.
One supplier from sample to shelf
Because bike shorts share our 10 lines with tops, tights and jackets, you can brief one team and receive a colour-matched capsule instead of matching a short vendor to the rest of the range.
Sampling that de-risks the launch
Development samples run 7–15 business days after design confirmation, letting you ride-test the stretch, opacity and hem hold before committing to the 1,000-piece minimum.
Customization Options
- Inseam: 5, 6, 7, 8 or 9 inch, graded to your size matrix.
- Waistband: encased wide band, V-seam, folded no-elastic or mid-rise.
- Stretch level: 180–250% elongation, set to your performance target.
- Opacity: tested under stretch at seat and thigh per your spec.
- Colour: matched to Pantone or your physical swatch across the capsule.
- Branding: tonal sublimation, silicone print, heat-transfer or low-profile embroidery.
- Pocket: hidden side pocket, zip pocket or none, per design.
- Packaging: individual polybag with hangtag, or folded and banded per retail spec.
Order Information at a Glance
| Item | Standard Terms |
|---|---|
| Minimum order quantity | 1,000 pcs per style per colourway |
| Sampling | 7–15 business days after design confirmation |
| Bulk production | 25–45 business days after deposit and pre-production approval |
| Peak season (Q3–Q4) | 45–60 business days; early commitment recommended |
| Payment terms | 50% deposit, 50% before shipment; T/T and L/C accepted |
| Incoterms | EXW, FOB or CIF available |
| Quality assurance | In-line inspection plus AQL 2.5 final random inspection |
| Capacity | 10 production lines, 150,000 pcs monthly capacity |
Frequently Asked Questions
Since there is no catalogue, how do I start?
Send a tech pack, a reference short or a list of performance targets — stretch percentage, inseam, opacity and branding. We engineer a development sample on our lines, which becomes the reference both sides approve before bulk.
What stretch and opacity do you standardise on?
Our 4-way knit runs 180–250% elongation with documented recovery, and every batch is opacity-checked under stretch at the seat and thigh rather than only when laid flat.
How do you stop the hem rolling up?
We finish the leg with a double-needle hem that lies flat against the thigh. The recovery of the knit is set so the hem stays put through a full workout instead of curling.
Can bike shorts be matched to my other styles?
Yes. Because they share our production lines and one dye batch record with tops, tights and jackets, the short stays matched to the rest of your capsule on the shelf and after washing.
What is the minimum and lead time for a new short?
The standard MOQ is 1,000 pcs per style per colourway. Sampling runs 7–15 business days, then bulk production 25–45 business days after deposit and pre-production approval, stretching to 45–60 in peak season.
