These clean-looking Polarized  black floatable rubber glasses provide physical protection, the right amount of coverage and have an excellent UV-400 lens integration to protect the user from harmful UV rays. The Knox have side protection and a large lens. The Knox floatable glasses come with super comfy design and an adjustable and flexible head strap, to make sure the glasses fit different faces properly. Features: Floatable glasses Comfortable design UV-400 Flexible head strap Adjustable head strap Polarized