80% Nylon, 20% Lycra - 2-way stretch Support Web; 80% Coolmax, 20% Lycra - 4-way stretch body fabric; Machine wash warm with like colors. Line dry in shade, do not tumble dry. Do not bleach. Do not iron. Do not dry clean. * Flat seam construction eliminates abrasion, increases comfort and enhances fit. * Lightweight polyester fleece chamois insert. * UPF 50+ for UVA/UVB protection * Thailand