The Surf is an excellent flex snorkel for divers of any experience level. Contoured barrel reduces water resistance. The Surf has a clear silicone flex tube and mouthpiece. The angled mouthpiece fits comfortably in your mouth for hours of snorkeling fun. The mouthpiece is also replaceable and can be removed easily when replacement is necessary (see SKU: GNSSMP). The flexible lower tube makes the Surf perfect for Scuba by automatically swing out of the way when you are using your Scuba regulator. The reservoir lower mouthpiece section with its one-way purge valve makes clearing the snorkel quick and easy once you surface from a dive. The adjustable mask strap retainer clip will keep your snorkel perfectly adjusted and ready for use. Once you have completed your dive it also makes removal from the mask easy. Snorkel is available in multiple colors.