Originally designed for full-face diving masks and helmets, these lightweight, prescription-ready glasses can also be worn beneath some recreational scuba masks. They can be outfitted with the diver’s exact prescription, including single vision, bifocals and progressive lenses. Thin cable temples sit flush against the head, so they won’t interfere with the mask skirt, while flexible ear hooks hold the glasses in place when removing, replacing or clearing a mask. They are compact and tailored close to the face for an optimal field of view. The glasses can be worn topside, allowing for a seamless continuity of vision between the surface and the sea.