- Lightweight 2.5” Space-O™ shell (cooling, fast dry, moisture control, 4-way stretch) perforated micro jersey. Fabric from Italy. - Anti-chafe Justice™ brief (silky soft, fast dry, moisture control, 4-way stretch) technical silk. - Double waistband construction to tuck drawcords in and avoid chafing. - Integrated sweatproof phone pocket in the double waistband. - Anti-chafe bonded seam construction. - Mini S-Carabiner to clip in valuables. - Exterior detachable care label so nothing rubs against your skin.