KUHL Men's Mutiny Board Short size 36 3D Nylon panels reduces skin contact and increase surface area for a faster dry time. Four-way stretch side panels and rear yoke enhance comfort and allow a wider range of movement. UPF 50 fabrication protects skin during outdoor activity by blocking harmful Ultraviolet A and Ultraviolet B rays (UVA and UVB). DWR (durable water repellent) finish sheds water. Strategic microfiber softshell panels for unrestricted movement. Fixed waist with a low-profile, grommet-free, ladder-lock drawstring closure. Peached Microfiber waistband lining provides a comfortable fit. 2 zip mesh lined zippered pocket pockets for security are strategically placed on side. RashGuard inseams are flat felled and rotated forward to minimize friction. Body: 100% nylon. Machine wash cold, tumble dry low.