Enhance your swimming performance with the Speedo DMC Original Fin, designed to boost leg strength and refine your flutter kick. These fitness fins, developed in collaboration with DMC, feature a short blade ideal for lap swimmers who value a secure fit with a closed heel pocket. Crafted from flexible silicone, they incorporate a DMC V-channel edge for optimal water grip and a universal foot cavity for easy wear. All-purpose silicone fitness fin for lap swimmers Short-blade design enhances leg strength and kick efficiency Universal foot cavity allows for easy on and off Made from flexible silicone for comfort DMC V-channel edge improves water grip Full toe drain chute ensures efficient water flow Materials 100% silicone