80% nylon 12% LYCRA spandex 8% polyester/ UPF 50+ Imported Machine Wash 2015 Fall/Winter ELITE Transfer In-R-Cool fabric powered by cold black provides superior cooling and reflective sun protection; Plush elastic silicone leg gripper ELITE Transfer In-R-Cool fabric features LYCRA Sport that helps garments maintain original compression levels; Flattering wide waistband for superior comfort 1:1 Gel Flask Pocketing System secures nutrition in an anatomic position to conform perfectly to the body in motion (patent pending); Merrow stitch construction for superior next-to-skin comfort Stretch draw cord for superior comfort and fit; One back easy access envelope pocket; TRI quick-dry chamois; 8" inseam (size medium)