Our Racmmer Bib shorts are made of 80% Polyester and 20% Lycra to allow for comfortable riding. Made with a 5D 'Coolmax' gel pad, double flat lock stitching to reduce abrasion and make a comfortable fit. Silicone grippers on the leg cuffs stop riding up. The lightweight and breathable fabric keeps you cool and makes riding a pleasure. Fabric matches some of our other Racmmer clothing to allow you to create a full matching set.