Designed to keep you comfortable for your longest days on the bikeisadore39s climbers bib shorts are made from two types of lycra174 premium italian andswiss schoeller lycra to ensure you get just the right amount of muscle support and comfort each material type is specially selected and put in the place where it is needed the most and offers the most benefit to the rider the matt black type of lycra is very soft stretchy pleasant on the skin and makes sure you get a superior fit the