This is the Cressi Sub Lince 2 Lens Scuba Diving Silicone Mask For Smaller Faces This Awesome Mask Features: Type: two lens mask Versions: transparent silicone, black silicone Materials: liquid silicone, techno-polymers, elastomers Strap buckles: pressure, with instant adjustment Internal volume: extremely low Size of the headband: 158 x 105.5 mm Weight: 165 g Prescription lenses: not available The skirt that has been specially designed for women and children Its extraordinary visibility, together with extreme comfort and a modern and efficient system for adjusting the strap makes this model indispensable for all diving activities, from snorkeling to deep free diving, to scuba diving.