Have you noticed how many high-end shorts are trying to copy ideas from Castellis Free Aero race short? We have too. enhanced again we have yet to see anyone come close to the comfort & function of our Free Aero bibshorts. New Giro 3 leg gripper our Free Bib construction & our New Progetto X2air seat pad. So much research & testing have gone into this short that we expect to continue to lead for years to come. Its certainly getting harder & harder to find things to improve. Three fabrics provide technical attributes unmatched By others: 1&41; action micro fabric in the saddle contact Area provides durability 2&41; action micro fabric on sides & back for outstanding stretch & excellent return & 3&41; breathe micro fabric in front provides enhanced Breathability. Progetto X2air pad for comfort & enhanced air flow on long days in the saddle. Famous free bib keeps your chest free to avoid overheating No inner-leg seam. Color-matched Giro 3 single-layer engineered gripper. 2 rear reflective inserts