The Seac Symbol is a Made in Italy two-glass diving mask featuring a 3D buckle directly on the mask body. The edge is slightly curved to increase the sealing surface, which reduces discomfort and marks on the face for optimal comfort even during extended use. The 3D tilt buckle with two buttons makes it easy to adjust the silicone strap of the mask. Angled 3 mm thick tempered glasses provide excellent visibility and high durability. Prescription lenses for nearsightedness and farsightedness are available separately. Would you like to use the Seac Symbol with your action camera and record your underwater adventures live? Check out the Seac Symbol Pro.