Seac Shuttle, 100% silicone short swim fins designed for strength or cardio training

The Seac Shuttle are 100 Percent silicone short swim fins designed in two different hardnesses for strength training (Sport version) or cardio (Power version) The Sport version is suitable for muscle enhancement of beginner or intermediate level swimmers. The swimmer benefits in strengthening the thighs, buttocks, calves and lumbar fascia. This will bring benefits when dealing with more intense workouts The Power version is designed for advanced level swimmers who face longer workouts and want to improve their pinneggiata frequency and cardio resistance