Pearl Izumi - Run Men's Elite in-R-Cool Tri Singlet 63% nylon 22% LYCRA spandex 15% polyester/ UPF 50+ Imported 63% nylon 22% LYCRA spandex 15% polyester Imported product 2015 Spring/Summer ELITE Transfer In-R-Cool fabric powered by coldblack provides superior cooling and reflective sun protection ELITE Transfer In-R-Cool fabric features LYCRA Sport that helps garments maintain original compression levels