Polyester Spandex Bamboo Charcoal Four-Way Stretch Recovery Rib Knit is a rib knit developed for Swimwear where chlorine and sunscreen resistance with shape retention decides whether a style succeeds. The base is polyester spandex with charcoal loaded filament, which gives permanent odour adsorption built into the yarn rather than the finish. The result is a fabric that delivers Four-Way Stretch Recovery in daily use rather than only in a laboratory.

Polyester Spandex Bamboo Charcoal 300 GSM Rib Knit, face view
Key specifications
| Parameter | Value |
|---|---|
| Fabric name | Polyester Spandex Bamboo Charcoal Four-Way Stretch Recovery Rib Knit |
| Composition | polyester spandex with charcoal loaded filament |
| Construction | Rib Knit (a rib knit) |
| Weight | 300 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
Because a rib knit is used, the fabric behaves consistently across the roll: high extension across the width with clean recovery, ideal for cuffs and bands. That consistency is what lets a factory cut confidently and lets a brand repeat an order a season later with the same result.

Rib 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: permanent odour adsorption built into the yarn rather than the finish.
- Construction benefit: high extension across the width with clean recovery, ideal for cuffs and bands.
- 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 Swimwear and for the accessories around them. chlorine and sunscreen resistance with shape retention is the reason it is chosen, and the fabric bonds, prints and sews on standard machinery without special settings.

Four-Way Stretch Recovery fabric prepared for Swimwear 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.
Can we get recycled content with this construction? In most cases yes. GRS certified recycled nylon or polyester can replace the virgin yarn with full chain of custody documents, usually with no visible change in hand or performance.