Cressi Big Eyes Evolution & Alpha Ultra Dry - Combo Diving Set Ideal for Snorkelling, Apnea and Diving - Adult Unisex, Black / BlackFeatures Mask high vision High quality Comfortable Fabric type: 75 Percent silicone 20 Percent engineering plastics 5 Percent tempered glass Product Description Product Description A mask particularly suitable for free diving and snorkeling, but just as appropriate for use in scuba diving it has separate lenses, a skirt edge that adapts to most faces and a small inner volume, ideal for free divers. The dry snorkel has a unique splash guard at the end