Superior tactile fabric in a mid calf length. Wide comfort waistband and sculpted 6 panel fit with flat seam construction, Flex Air chamois with Elastic Interface Technology 20 inseam silicone leg gripper reflective calf accents.Flex Air Chamois:We've taken the latest elastic interface chamois technology and blown holes through it. Literally and entirely. All the virtues of 4 way stretch, with ventilation for all the benefits you can imagine. The result is that you'll feel as though you're riding on air.