To use these boardshorts, simply put them on like regular shorts before you hit the waves. The hidden zip pocket is great for storing small items like keys or a credit card, but make sure to zip it up tightly so nothing falls out. When you're done surfing, rinse the boardshorts in fresh water to remove salt and sand. Hang them to dry in a shaded area to prevent the color from fading. Avoid using harsh detergents when washing, as they can damage the neoprene side panels and the sublimation print. A mild detergent will do the trick. With proper care, these boardshorts will serve you well for many surfing adventures.