Breathable mesh or neoprene upper, adhesive secure-close straps. Cushioned foot bed. Textured lug outsole. These water sandals are totally sporty & unisex, too. Wearable & shareable for him, for her, for them. To measure your shoe size, place a piece of paper on the ground. Stand barefoot on the paper. Using a pen, draw an outline of your foot. Use measuring tape to measure the length of your foot on the paper. Spot clean. .