BLACKHAWK! Men's Engineered Fit Long Bottoms Jersey knit 92% nylon / 8% spandex; and Panels: 95% polyester / 5% Lycra. Jersey knit 92% nylon / 8% spandex; and Panels: 95% polyester / 5% Lycra.|Smooth matte-finish face surface reduces drag and bulk when layering and textured, brushed interior enhances moisture wicking|Machine Wash Warm, Tumble Dry Low, Do Not Iron, Do Not Bleach, Do Not Use Fabric Softeners|El Salvador|