Three Lenses mean more Exciting Views! The Koi Mask features a Comfortable, Attractive Three Tempered Glass Lens Design that provides a Wide and Panoramic View of the Marine Environment. Mask has a 100% Silicone Rubber Double Feathered Edge Skirt and a Wide Split Strap Design which combine for a Perfect Seal on the Divers Face. This Medium Profile Mask has an Easy-to-Reach One-Handed Nose Pocket for Ear Equalization and the Low Internal Volume makes it Easy to Clear. The Koi's Strap Buckles have a Quick Release Feature and Easy Adjustment for the Mask Strap. Mask is available in Blue or Clear colors and is covered by a 12 month limited warranty.