Great for beginning and practiced snorkelers and divers, this innovative snorkel and mask set allows you to observe marine life with comfort and ease. With a self-draining valve that purges excess water and a special mechanism at the top that seals upon contact with water, your snorkel will stay dry as you dive and resurface. The antifog mask features a scratch- and shatter-resistant tempered-glass lens with a four-window design for increased peripheral vision while exploring underwater. With hypoallergenic silicone face-skirt.