Salt Water Sandals are manufactured in traditional US men’s sizing. For US Women sizes, please go up by two sizes. Please refer to our Size Guide Tab. Please note that Salt Water and Sun-San sandals should fit firmly across the foot on first wear and will gradually adapt to your foot shape. If you experience rubbing/tightness, simply pop your sandals on and stand in a bucket of cool water for a few minutes and then allow your sandals to dry while you’re wearing them so that they mould nicely to the shape of your foot. As the name implies, it’s fine to wear Salt Water and Sun-San sandals in the water (including at the beach, jumping in puddles etc) and they can be hand washed in cold water using a mild detergent, if dirty. However, be sure to dry away from direct sunlight/heat.