The Salvimar Siliconair Snorkel is manufactured in a hypoallergenic silicone for comfort and better hygiene. The shape of the silicone mouthpiece and the contoured air tube has been ergonomically designed to follow the profile of the spear fisherman's face, to greatly reduce its visibility during the dive. The mouthpiece is a swivel design for a comfortable fit while free diving for extended periods of time. This simple, yet effective traditional J" style snorkel design has no valves or levers like more sophisticated snorkels to create leaks or breakdown when you really need it. The snorkel is available in green. Snorkel is covered by a 24 month limited warranty.