arena's Swim Snorkel Pro III is perfect for competitive swimmers who want to improve their swimming or breathing technique. The hydrodynamic design, centre construction and adjustable strap ensure a stable fit, even at high speeds. The swim snorkel enables under water breathing so the athlete is able to focus on swimming technique and position in the water. Delivered with two air regulators for different levels of lung training. With two different silicone mouthpieces, the swim snorkel can be customized for all swimmers.