This is the XS Scuba Turtle Fin Classic Style Rubber Blade Scuba Diving Features: A classic favorite Now available to order with Spring Straps installed Compression molded, rubber construction Provides exceptional speed with minimal effort XL size with the foot pocket of a large Jet and the blade design of a Turtle 2XL size with the foot pocket of a extra large Jet and the blade design of a Turtle 3XL size popular among drysuit divers because of the very large foot pocket Stainless steel wire buckle The XS Scuba Turtle Fins have always been a classic favorite among avid diver as well as tech divers. You can order them with standard straps or spring straps installed.