The SP-460 Imprex Hyperdry snorkel has a special angled chamber at the top of
the snorkel that is offset from the main barrel. This unique chamber helps
prevent water from entering the main barrel while you're snorkeling by simply
deflecting incoming water. If water does get into the snorkel there's an
underside purge valve that lets water drain out of the barrel without entering
the air intake chamber of the mouthpiece.
Features:
Hyperdry System
Large capacity drain chamber for easy clearing
Ortho-consciously designed mouthpiece for ultimate comfort