Warpstreme™ Sweat-wicking Warpstreme™ fabric is four-way stretch sweat-wicking four-way stretch Features Designed for: On the Move Abc™ technology: Our ABC™ technology uses an ergonomic gusset to remove tension from the crotch of our pants Secure pocket: Hidden zippered pocket to stash your cards and key Reflectivity: Flip up the cuffs to expose reflective details Fit: Classic fit Size: 31