Zoot Sports Men's Ultra 9-Inch Triathlon Short 100% Polyester Body: 155 g. 71% Polyamide/29% Xtra Life Lycra ULTRArevo. Inset 1: 228 g. 79% nylon/21% spandex Teksheen. Inset 2: 250 g. 100% polyester Tri Cycle Fleece Machine wash cold, Gentle cycle, No softeners, Dry Flat, Do not bleach, Do not dryclean MO