This Interlock Knit is built for brands whose Swimwear programme needs chlorine and sunscreen resistance with shape retention without a complicated supply chain. Knitted from nylon 66 filament with high tenacity spandex, it offers higher melt point and better abrasion resistance for demanding uses, and the construction is engineered so that Antibacterial Anti-Odor.

Nylon 66 High Tenacity Spandex 240 GSM Interlock Knit, face view
Key specifications
| Parameter | Value |
|---|---|
| Fabric name | Nylon 66 High Tenacity Spandex Antibacterial Anti-Odor Interlock Knit |
| Composition | nylon 66 filament with high tenacity spandex |
| Construction | Interlock Knit (a double-bed interlock knit) |
| Weight | 240 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
Performance comes from three decisions: the yarn, the stitch and the finishing route. nylon 66 filament with high tenacity spandex supplies the base behaviour, a double-bed interlock knit sets how air and moisture move, and finishing is kept deliberately light so the attributes survive washing.

Interlock 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: higher melt point and better abrasion resistance for demanding uses.
- Construction benefit: identical faces on both sides, so the fabric stays opaque under tension.
- 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
Specified mainly for Swimwear, and suited to any programme where chlorine and sunscreen resistance with shape retention is written into the brief. Designers use the same base for matching styles, which keeps colour continuity simple across a collection.

Antibacterial Anti-Odor fabric prepared for Swimwear production
Dyeing, finishing and customisation
Dyeing runs on a controlled recipe with consolidated dye lots to hold shade continuity. Finishing options include wicking, antibacterial, soft touch and anti-pilling, applied after lab trials so the hand approved in sampling is the hand delivered in bulk.
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
Sampling is fast: A4 hand feel cards, laboratory dips and a 5 metre trial roll within a week. Bulk runs in 20-25 days, with inline inspection and a final random inspection before packing.

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.