"Increase your visibility with the Cressi Frameless Snorkeling & Scuba Mask. This high-quality mask features tempered glass lenses, a durable silicone skirt and push button buckles for quick strap adjustment. The maskâ€s lightweight silicone seals securely and gently to the face while reduced size and volume makes clearing the water easy. The Frameless Mask from Cressi offers top-notch quality, so you can explore the waters in comfort."