Speedo Men's Solid Surf Runner Watershorts Nylon 100% Tactel Nylon Premium quality nylon for longevity and quick drying. Outseam of 11" is perfect for running or sunning Full elastic waist with drawstring to ensure a secure fit. Dyed to match liner. Notched leg for extra comfort and freedom of movement. Look and feel your best as you compete, train for health, have fun, or relax. By Speedo - #1 swim brand worldwide Hand wash cold separately. Do not bleach. Dry flat. Do not iron. Do not dry clean.