Arena'S Unisex Swim Snorkel Iii Is Perfect For Breathing Under Water During Training. It Helps You Concentrate On Your Swimming Technique And Position In The Water. A One-Way Purge Valve Prevents You From Inhaling Water During Flip Turns. This Feature Makes The Snorkel Ideal For Beginners. The Adjustable Headband Strap Provides A Stable And Comfortable Fit And Its New Design Makes It Even Easier To Wear And Adjust To A Fixed Position. The Swivel-Mounted Strap Simplifies Communicating With Your Coach During Training. Pair This Swim Snorkel With Other Training Tools And Swim Accessories From Arena.