Calcutta Backspray Sunglasses Made using the highest quality materials Tested to ensure durability All your outdoors and fishing essentials Durable 1.0 millimeter triacetate polarized blue mirror lenses Super tough polycarbonate frame. Polarized lens offer protection against ultraviolet A and ultraviolet B rays. Durable 1.0 millimeter Triacetate Polarized lenses. 1 Year Warranty