The Shredder SAR Fins are designed specifically for water rescue and SAR swimming. Ultra-light technopolymer blade provides optimized power and snap with up to 50% less weight and bulk. New blade technology reduces drag, increases lift and propulsion, as well as providing efficient water flow for improved thrust while greatly reducing ankle and leg fatigue. Heavy-duty fin straps with adjustable buckles provide customized fit for maximum comfort, leverage, and power while eliminating "slop" and chaffing. Integrated quick-release leash secures and retains fins. Soft foot pocket with heel pad provides excellent comfort and is designed to fit most large neoprene and molded sole dive/rescue boots (including boots integrated on ice rescue suits).