Warpstreme™ Warpstreme™ fabric is two-way stretch. BBB01 Two-way stretch Features Designed for: On the Move Support: ABC (anti-ball crushing) design gives the boys some room Secure pocket: Hidden zippered pocket fits a passport No-gape pockets : Hidden snaps mean the back pockets won't gape Reflectivity: Flip up the cuffs to expose reflective details Streamlined fit: Smooth fit reduces bulk through the butt and quads Fit: Tapers from knee to hem