DRSKIN UV Sun Protection Long Sleeve Top Shirts Skins Tee Compression Base Layer 92% Polyester, 8% Spandex - Smooth and Ultra-Soft Fabric that provides extreme comfort with very little weight without restriction Designed for all seasons(training, baseball, basketball, soccer, American football, NFL, Squat, weight training, cycle, yoga, rashguard, skiing, snowboarding, all weather sports) Non abrasion fabric material with excellent elasticity and durability, UV BLOCKING 98.8% Moisture Sensing/Quick time Dry/TWO-WAY Air Circulation, Cool in Summer and heat retention in winter Quick and Dry Transport System - Wicks Sweat away from the body, keeping you cooler and drier