Challenge has changed over to using the black ULTRA yarn in this fabric, so it no longer has the white side. It is black on both sides now.
ULTRA™ Stretch by Challenge is a blend of Ultra (UHMWPE), nylon 6-6, and Lycra®, excellent for bag pockets and pouches or anywhere you need a durable stretch fabric for your gear. Gram-for-gram, has a tensile strength 15x stronger than steel.The fiber is also incredibly lightweight while being highly abrasion-resistant.
4-way stretch mesh woven with the highest quality fibers for performance and longevity. Features a versatile aesthetic with both a dark and light side.
Weight: 5.5 oz/yd² , 186 gsm
Width: 43 in , 112 cm
66% Nylon 6.6 / 21%UHMPE / 13% Elastane
| Test | Warp | Weft | Results | |
| Tensile Strength | ASTM D5034-21 | 883 N | 778 N | X |
| Tear Strength | ATSM D1424-09 | 10,124 cN | 12,120cN | X |
| Abrasion | ASTM D4966-12 | X | X | 20,000 cycles |
| Air Permeability | ATSM D737-18 | X | X | 6.46 cm²/s/cm² |
