Learn More rntttt Designed for water rescue and SAR swimming, these fins have a short shape for explosive thrust and exceptional maneuverability. With a large, soft foot pocket and an adjustable padded heel strap, the Shredder can be worn over water boots as well as booties. Lugs on the sole of the foot add traction when walking. An integral quick-release leash secures the fin in the roughest water. The Shredder comes only in size large, which adjusts to fit most swimmersxe2x80x99 boots and booties.