The Focus swim training snorkel features a unique, low-profile design that has been engineered for maximum comfort and durability, allowing the swimmer to focus solely on technique and proper body position by eliminating breathing motion. Unique, low-profile, hydrodynamic tube reduces drag and eases breathing. Increases cardiovascular strength and lung capacity. Adjustable light weight head bracket with integrated cushion ensures comfortable fit. Silicone Comfo-Bite mouthpiece minimizes jaw fatigue. One-way purge valve positioned to maximize clearing of excess water. Triangular tube shape inhibits side-to-side rotation. Offered in regular fit and small fit.