Cool from the jump. Thanks to technical fabric and strategic mesh paneling, this boxy tank cools, ventilates, and performs as you sweat your way to the finish. We love it for: racing and running ChillMesh(TM) : 88% cooling polyester, 4% polyester & 8% spandex Cooling, breathable, lightweight & smooth WickMesh(TM) side panels: 95% polyester & 5% Spandex Wicking, breathable & lightweight Relaxed fit Cropped length Reflective logos & back bar Machine wash cold, tumble dry, don&';t bleach Designed in California, made abroad