Guaranteeing a steady stride, these light weight waterproof sandals feature adjustable hook and loop straps, a cushioned, shock-absorbing midsole, drainage sole for water and fresh air flow and a slip resistant outer sole that ensures traction while preserving floors. All day comfort for outdoor activities wet or dry. BPA free. When choose size using shoe length (mm) provided, minus 15 mm will be the feet length. Extra wide feet are recommended to order 1/2 US size up & narrow feet are recommended to order _ US size smaller