Pearl iZUMi Men's Elite Pursuit Tri Singlet 63% Nylon 22% Lycra Spandex 15% polyester/UPF 50+ Imported ELITE transfer In-R-Cool fabric powered by cold black provides superior cooling and reflective Sun Protection ELITE transfer In-R-Cool fabric features Lycra Sport that helps garments maintain original compression levels ELITE transfer Aero fabric is strategically placed for superior aerodynamics Merrow stitch construction for superior next-to-skin comfort, 10 inch Two back easy access Envelope pockets