The Endura SingleTrack bibshort is designed to be worn under your MTB pants for stability during your rides. Made from quick-drying stretch fabric with mesh panels for optimal ventilation and fit during sport. Includes the 500 Series women's chamois pad, elastic, and with antibacterial properties.500 Series Pad: When riding in hot climate zones, temperature regulation is the most critical challenge. The pad is one of the key areas where heat build-up can cause body temperature to rise significantly. The new Endura 500 series used in the Xtract Lite tackles this problem head on, with the addition of a new generation of foams that expel water. Disperser-Foam, a world exclusive from Endura, a revolutionary technology whose foam cell construction provides superior drying and dramatically improves air permeability compared to conventional PU foams.