DETAILS & DESIGN : Pro quality dual lens, liquid silicone mask with elastic strap with sewn in snorkel keeper Snorkeling set comes with compact, high flow, dry top snorkel with silicone mouthpiece and drop away flex tube Whether snorkeling or scuba diving, this compact dual lens mask provides excellent vision and comfortable fit Adjustment is easy with big button EZ SQZ buckle system Dry top snorkel keeps water out, even while submerged, for easy continued breathing upon surfacing Silicone drop away tube stays out of the way when removed for scuba diving