The Cressi Liberty Triside features a wide mono front lens with 2-sided lenses to ensure a panoramic view without interruption. The result is a mask that allows maximum light and feels as open as the ocean itself. All lenses are tempered glass for the best clarity. The skirt is made in hypoallergenic silicone to ensure comfort and a perfect seal. It is a breeze to adjust the length of the strap thanks to the two buttons on the buckle, which can also be used while wearing gloves. The frame is colored with a paint effect that makes the mask elegant and beautiful to see, which can be coordinated with your equipment. Three-lens panoramic design for excellent peripheral vision. Lightweight, durable polycarbonate frame. Soft silicone skirt fits a wide range of face shapes. Fast-adjust ratcheting strap buckles. Easy-access nose pocket for equalization. Lenses made in tempered glass.