This Seamless Circular Knit is built for brands whose Sports Bras programme needs controlled support and soft contact at the underband without a complicated supply chain. Knitted from nylon spandex with silver ion filament, it offers antibacterial performance that survives repeated home laundering, and the construction is engineered so that Compression.

Nylon Spandex Silver Ion Yarn 220 GSM Seamless Circular Knit, face view
Key specifications
| Parameter | Value |
|---|---|
| Fabric name | Nylon Spandex Silver Ion Yarn Compression Seamless Circular Knit |
| Composition | nylon spandex with silver ion filament |
| Construction | Seamless Circular Knit (a seamless circular knit) |
| Weight | 220 GSM |
| Width | 165 cm |
| Function | Compression — delivers graduated support while remaining easy to put on |
| Performance target | recovery above 92% after 100% extension |
| Test method | ASTM D2594 stretch and recovery |
| Additional value | power measured in the 15-25 N range at 30% extension |
| 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
Because a seamless circular knit is used, the fabric behaves consistently across the roll: tubular production that removes the side seam entirely. That consistency is what lets a factory cut confidently and lets a brand repeat an order a season later with the same result.

Seamless Circular Knit construction shown at close range
Performance features
- Compression: delivers graduated support while remaining easy to put on, measured by ASTM D2594 stretch and recovery.
- Hand and comfort: antibacterial performance that survives repeated home laundering.
- 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
Used for Sports Bras and for the accessories around them. controlled support and soft contact at the underband is the reason it is chosen, and the fabric bonds, prints and sews on standard machinery without special settings.

Compression fabric prepared for Sports Bras production
Dyeing, finishing and customisation
The fabric can be supplied greige, piece dyed or printed. Add-on finishes are selected after a wash durability trial, because a finish that disappears after five washes is worse than no claim at all.
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
Minimum trial order is 300 metres per colour and bulk production takes 20-25 days once the approval sample is signed. Documentation includes test reports per lot, OEKO-TEX conformity and full construction sheets.

Roll inspection and packing before shipment
Frequently asked questions
Is the performance tested on every lot? Yes. The named test method is repeated on bulk fabric, not only on the approval sample, and the report carries the lot number so results can be traced back.
Is the performance tested on every lot? Yes. The named test method is repeated on bulk fabric, not only on the approval sample, and the report carries the lot number so results can be traced back.