Loose: Fuller cut for complete comfort. Smooth, lightweight, fast-drying fabric for superior performance Stretch-mesh side panels deliver strategic ventilation 30 UPF protects your skin from the sun's harmful rays Moisture Transport System wicks sweat & dries fast Anti-odor technology prevents the growth of odor causing microbes Body: 3.8 oz. Polyester Mesh: 4.6 oz. Polyester/Elastane Imported