Specifically created for divers who need a wider mask, the Pano 4 combines excellent field of view in a multi-lens design with reasonable internal volume for better clearing and a lower profile in the water. All lenses are tempered glass for the best clarity and lenses are joined in a special way to minimize the visible seam. An excellent choice for both diving and snorkeling, the Pano 4 provides both improved vision and comfort over previous multi-lens masks Specially designed for medium and large faces Low volume design with unobstructed panoramic view 100% liquid silicone skirt Easy-adjust swiveling buckles Extremely lightweight and low profile.