Be prepared for your next snorkeling adventure with the Tusa Adults' Serene Snorkeling Mask. This snorkeling mask is constructed with pure silicone to gently conform to the contours of your face. The 1-window design features a wide field of view for enhanced vision, while the adjustable 3-D strap allows for a secure fit. Tusa Adults' Serene Snorkeling Mask Black/Bright Green - Swim And Diving Accessories at Academy Sports