The Mavic Cosmic Pro Bib Short is Mavic's lightest bib, designed for the steepest climbs on the hottest days. From its lightweight but supportive main body fabric to its multi density 3D insert, the Cosmic Pro is ready to help you tackle mid summer rides you wouldn't dream of going for in a lesser bib.Constructed from Skin Power fabric, Cosmic Pro Bib Shorts not only wick moisture to keep you cool and dry during blazing hot rides, but they also function as a medium weight compression fabric. This minimizes vibration in your muscles, which, in turn, reduces fatigue. Skin power is also extremely abrasion resistant, so the Cosmic Pro should last season after season. The shorts were sewn using a seamless construction and silicone leg grippers hold them in place so they won't creep up.The bib uppers are made with an open mesh that allows air to pass freely in and out, cooling your skin while it provides support and keeps the short in place. The Mavic Cosmic Pro Bib Short utilizes Mavic's Ergo 3D insert. Ergo 3D is a variable thickness chamois with 6mm of padding under the sit bones to 2mm at the periphery. A channel down the middle helps to avoid pressure on sensitive body parts, and the multi density foam tailors the cushioning. In addition, the entire chamois is covered in antimicrobial fabric, and it stretches to conform to your body shape so that it won't bunch as you ride.