Promate Arc 100% Dry Snorkel - Premium Snorkeling Gear for Adults & Kids - Comfortable & Safe for Ocean Swimming, Pool Training & Underwater Exploration (Model SK670)

*A low-profile valve automatically seals upon descent to create a truly 100% dry snorkel.
*Soft silicone mouthpiece prevents jaw fatigue.
*Contoured barrel reduces water resistance and lessens jaw fatigue.
*Snorkel keeper secures mask strap in place.
*Silicone purge valve for easy draining.