Seac Scuba Diving Snorkeling Freediving Combat Mask Snorkel Set Polycarbonate lined frame with special anti-abrasion camouflage wet technology Symmetrical tempered glass lenses, integrated buckles into the frame Provides extraordinary capacity to adapt to various Faces Liquid silicone with opaque anti reflection finish Durable, flexible preformed corrugated PVC snorkel tube with an excellent shape memory