arena's Unisex Swim Snorkel Pro III is perfect for competitive swimmers who want to improve their swimming or breathing technique. The hydrodynamic design, center construction and adjustable strap ensure a stable fit, even at high speeds. New headband strap makes it even easier to wear, more stable and fixed with a center-mounted position. The swim snorkel enables underwater breathing so the athlete is able to focus on swimming technique and position in the water. Ideal for advanced competitive swimmers. Includes two air regulators for different levels of lung training. With two different silicone mouthpieces (small and large), the swim snorkel can be customized for all swimmers. Pair this swim snorkel with other training tools and swim accessories from arena.