This Interlock Knit is built for brands whose Base Layers programme needs next-to-skin comfort with continuous moisture movement without a complicated supply chain. Knitted from recycled polyester spandex with coffee ground filament, it offers odour control combined with a credible recycled content story, and the construction is engineered so that UPF 50+ Sun Protection.

Recycled Polyester Coffee Yarn 250 GSM Interlock Knit, face view
Key specifications
| Parameter | Value |
|---|---|
| Fabric name | Recycled Polyester Coffee Yarn UPF 50+ Sun Protection Interlock Knit |
| Composition | recycled polyester spandex with coffee ground filament |
| Construction | Interlock Knit (a double-bed interlock knit) |
| Weight | 250 GSM |
| Width | 160 cm |
| Function | UPF 50+ Sun Protection — blocks ultraviolet radiation for outdoor training |
| Performance target | UPF rating above 50 with UVA below 5% |
| Test method | AATCC 183 ultraviolet transmittance |
| Additional value | protection held after 40 washes and in the wet state |
| 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. recycled polyester spandex with coffee ground filament 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
- UPF 50+ Sun Protection: blocks ultraviolet radiation for outdoor training, measured by AATCC 183 ultraviolet transmittance.
- Hand and comfort: odour control combined with a credible recycled content story.
- 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 Base Layers, and suited to any programme where next-to-skin comfort with continuous moisture movement is written into the brief. Designers use the same base for matching styles, which keeps colour continuity simple across a collection.

UPF 50+ Sun Protection fabric prepared for Base Layers 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
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.
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.