Tested in the toughest winter conditionsisadore39s thermo roubaix bib tights have been carefully selected and constructed from two types of thermoroubaix lycra174 materials with soft brushed fleece on inside to ensure you are kept insulated from cold weather both materials are treated with dupont teflon174 fabric protector to enhance the ability of the fabric to repel water and dirt cut in an ergonomic fit provide compression and support to the muscles an essential in every riders w