COMBO PACK! - One KewlShirt Tee PLUS One Tank Top - Step up your Training! This listing is a COMBO PACK OF 1 DRYKEWL TANK AND 1 DRYKEWL T-SHIRT Traditional Sport T-Shirt styling, made with Spandex, HyperKewlTM fabric and waterproof nylon Designed to be worn against the skin for maximum cooling effect, with ventilation vents built into back and front panels Best worn underneath a breathable sports jersey or on its own Can provide 5-10 hours of cooling relief per soaking