Castelli Free Tri Shorts - Men's Instadry Speed fabric is fast in the swim with minimal water absorption Free construction for great anatomic fit. 2 small pockets on hip for nutrition during run KISS Tri seat pad is comfortable on the bike and virtually disappears on the run SnapLock fastener at waist to clip jersey into place for swim and bike Flat-lock stitching. Giro Air gripper elastic for more comfort