Pearl iZUMi Men's Elite Pursuit Tri Singlet 78% Nylon/22% Lycra Spandex Imported Spring/summer 2017 ELITE transfer In-R-Cool fabric powered by cold Black provides superior cooling and reflective sun protection Merrow stitch construction for superior Next-to-Skin comfort. 10 inch zipper for venting. Two back easy access envelope pockets 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