A production-ready Seamless Circular Knit for Training Shorts, specified around abrasion resistance plus a comfortable liner. Composition is nylon 66 filament with high tenacity spandex, which delivers higher melt point and better abrasion resistance for demanding uses. Every lot is finished and tested so that Four-Way Stretch Recovery is measurable rather than claimed.

Nylon 66 High Tenacity Spandex 220 GSM Seamless Circular Knit, face view
Key specifications
| Parameter | Value |
|---|---|
| Fabric name | Nylon 66 High Tenacity Spandex Four-Way Stretch Recovery Seamless Circular Knit |
| Composition | nylon 66 filament with high tenacity spandex |
| Construction | Seamless Circular Knit (a seamless circular knit) |
| Weight | 220 GSM |
| Width | 165 cm |
| Function | Four-Way Stretch Recovery — extends in both directions and returns without bagging |
| Performance target | less than 5% growth after repeated extension |
| Test method | ASTM D2594 stretch and recovery |
| Additional value | recovery tested on a worn garment, not only on flat fabric |
| Stretch | Four-way, recovery above 92% |
| Certification | OEKO-TEX Standard 100, REACH compliant inputs |
| MOQ | 300 m per colour |
| Lead time | 20–25 days after approval |
Why this construction works
The construction does the work before any chemistry is added. a seamless circular knit means tubular production that removes the side seam entirely, and that structure is what allows the fabric to extends in both directions and returns without bagging under the conditions Training Shorts actually face.

Seamless Circular Knit construction shown at close range
Performance features
- Four-Way Stretch Recovery: extends in both directions and returns without bagging, measured by ASTM D2594 stretch and recovery.
- Hand and comfort: higher melt point and better abrasion resistance for demanding uses.
- Construction benefit: tubular production that removes the side seam entirely.
- Consistency: GSM and width tolerance are locked per lot and recorded on the inspection sheet.
- Durability: performance is verified after repeated washing, not only as delivered.
Recommended applications
The first choice for Training Shorts, where abrasion resistance plus a comfortable liner is the requirement that decides the fabric. It also converts cleanly into coordinated pieces in the same programme, since the hand and the shade run together.

Four-Way Stretch Recovery fabric prepared for Training Shorts production
Dyeing, finishing and customisation
Available in piece dyed, yarn dyed or sublimation ready form. Functional finishes such as moisture management, antibacterial, anti-pilling and UV absorption can be applied individually or combined, and each is verified against its test method before bulk release.
Care instructions
- Machine wash at 30 degrees with mild detergent, no fabric softener.
- Dry away from direct heat and do not tumble dry hot.
- Cool iron on the reverse if needed, and avoid bleach.
Ordering, sampling and quality control
Trial quantity starts at 300 metres per colour with laboratory dips in five working days. Bulk lead time is 20-25 days after approval, and every lot ships with a test report, a shade check and an inspection record.

Roll inspection and packing before shipment
Frequently asked questions
What is the minimum for a first order? Development starts at 300 metres per colour, which is enough for a proper wear trial and a small capsule. Bulk pricing improves at 1,000 metres and above per colour.
Can the weight and width be changed? Yes. Most programmes run between 140 and 340 GSM, and width can be set between 150 and 180 cm to match your marker. Changing weight changes cover and stretch, so we re-test before confirming.