The Surf is an Excellent Flex Tube Snorkel for divers of any experience level. Contoured Barrel Reduces Drag and Water Resistance. The Surf has a Clear Silicone Lower 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. The Flexible Lower Tube makes the Surf perfect for Scuba by Automatically-Swinging 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. The Surf Snorkel is available in Black, All Black, Blue, Clear or Yellow and is covered by a 12 month limited warranty.