Nylon Polyester Spandex Tri-Blend Antibacterial Anti-Odor Seamless Circular Knit is a seamless circular knit developed for Sports Bras where controlled support and soft contact at the underband decides whether a style succeeds. The base is 55% nylon / 35% polyester / 10% spandex, which gives a cost-balanced hand with better abrasion life than straight nylon. The result is a fabric that delivers Antibacterial Anti-Odor in daily use rather than only in a laboratory.

Nylon Polyester Spandex Tri-Blend 250 GSM Seamless Circular Knit, face view
Key specifications
| Parameter | Value |
|---|---|
| Fabric name | Nylon Polyester Spandex Tri-Blend Antibacterial Anti-Odor Seamless Circular Knit |
| Composition | 55% nylon / 35% polyester / 10% spandex |
| Construction | Seamless Circular Knit (a seamless circular knit) |
| Weight | 250 GSM |
| Width | 150 cm |
| Function | Antibacterial Anti-Odor — stops the bacteria that turn sweat into odour |
| Performance target | bacterial reduction above 99% |
| Test method | ISO 20743 antibacterial test |
| Additional value | performance retained after 30 home washes |
| 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 stops the bacteria that turn sweat into odour under the conditions Sports Bras actually face.

Seamless Circular Knit construction shown at close range
Performance features
- Antibacterial Anti-Odor: stops the bacteria that turn sweat into odour, measured by ISO 20743 antibacterial test.
- Hand and comfort: a cost-balanced hand with better abrasion life than straight nylon.
- 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 Sports Bras, where controlled support and soft contact at the underband 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.

Antibacterial Anti-Odor fabric prepared for Sports Bras 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
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.
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.