Seac Symbol is a Made in Italy dual-glass diving mask featuring a 3D buckle directly on the mask body. The edge is slightly curved to increase the sealing surface, reducing 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 mask's silicone strap. Angled 3 mm thick tempered glasses provide excellent visibility and high durability. Prescription lenses for nearsightedness and farsightedness are available separately.