Superbody Navy Stripe Men's Square Legs Swimsuit Swimming trunks Blue size m Fabric: 80% nylon 20% lycra. Fine fabrics, comfortable fit This is Asia size which is smaller than USA size, please select one size bigger. Hand wash cold water, hang or lay flat to dry M(24.9"-26.2")L(26.2"-27.5")XL(28.8"-30.1")XXL(31.5"-36.7"