The Seac Shuttle are 100% silicone short swimming fins designed for strength training (Sport version). The Sport version is suitable for muscle strengthening for beginner or intermediate level swimmers. The swimmer finds benefit in strengthening the thighs, buttocks, calves and lumbar band. This will bring advantages when facing more intense workouts. Thanks to the silicone structure, the short fins from Seac Shuttles never lose their shape memory, they can also be used for snorkeling. The softness of the fin also allows the ankle and instep to flex correctly and therefore to push as far as possible up to the toes. In this way it is possible to make the most of the entire surface of the Seac Shuttle short swimming fins.