RunFlyte Men's Intensity Tight Bottom - Running - Lightweight - Workout fabric 82%Nylon, 10% Spandex, super lightweight material Ultra-Light fabric offers smooth performance, soft comfort, and minimal resistance against the wind Sweat-resistant finish keeps you feeling comfortable and dry on the road, trails, court...pretty much anywhere Smooth elastic waistband for a snug, comfortable fit Reflective logos and detailing for high visibility when you go for those late night runs