Endura's FS260-Pro SL Bibshorts are made of Italian power Lycra fabric for excellent muscle support, and they feature Coldblack technology to dramatically reduce the heat. These UPF 50+ shorts have a pre-curved race fit and mesh upper for optimal breathability. Plus, you'll love Endura's 700-Series antibacterial semi-custom fit chamois so you can chose the ideal width to match your body, bike geometry, and riding position.