Sun-San Saltwater Swimmer SandalThe Sun San Swimmer has a slightly narrower fit and comes in a lightweight, cushioned urethane sole. Rust proof brass buckles and scuff resistant, water friendly genuine leather make them ideal for in and out of water wear. They clean up so easily and, with proper care, will last for years. Sun San sandals tend to run true to size.?? Check our size chart above to determine your Sun San size.