The Cressi Calibro Dive Mask provides visibility and comfort in a compact size. Its hydrodynamic, tapered and low-volume shape conforms to your face for leak-free wear. The dual lens design has great field of view for lateral, wide and lower zone viewing. Inclined and inverted lenses improve downward visibility. You'll be able to see every fin and flipper that swims your way. The wide silicone split strap design provides a great fit and comfort on the back of your head. Other features include tempered glass lenses, easy-to-adjust buckles and a one-hand nose pocket for ear equalization. A hard plastic protective mask box is included. Dual lens tempered glass lenses are strong and scratch resistant.