DESIGN: Designed with safety in mind 30% larger viewing area Valve's design gives the user effortless and natural breathing, with a wide breathing area around the nose and mouth Water draining valves safely remove any water that may enter the mask Designed for surface use only and should not be used at depth Face skirt is made of soft hypoallergenic silicone that ensures comfort and a perfect seal Two x-cross straps are easy to adjust for a perfect adaption to your head Frame and lens are made of polycarbonate material Made in two sizes to ensure proper fitting