Nylon 66 High Tenacity Spandex UPF 50+ Sun Protection Single Jersey Knit combines nylon 66 filament with high tenacity spandex with a Single Jersey Knit construction. It is aimed at Running Tops that require low weight with fast moisture transport, and the reason is straightforward: higher melt point and better abrasion resistance for demanding uses, so UPF 50+ Sun Protection.

Nylon 66 High Tenacity Spandex 150 GSM Single Jersey Knit, face view
Key specifications
| Parameter | Value |
|---|---|
| Fabric name | Nylon 66 High Tenacity Spandex UPF 50+ Sun Protection Single Jersey Knit |
| Composition | nylon 66 filament with high tenacity spandex |
| Construction | Single Jersey Knit (a plain single-bed knit) |
| Weight | 150 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
The construction does the work before any chemistry is added. a plain single-bed knit means the lightest way to get coverage, with good stretch and a clean surface for printing, and that structure is what allows the fabric to blocks ultraviolet radiation for outdoor training under the conditions Running Tops actually face.

Single Jersey 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: higher melt point and better abrasion resistance for demanding uses.
- Construction benefit: the lightest way to get coverage, with good stretch and a clean surface for printing.
- 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 Running Tops, where low weight with fast moisture transport 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.

UPF 50+ Sun Protection fabric prepared for Running Tops 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.
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.