The Gunner is sleek and subtle convertible eyewear, which combines the most efficient aspects and functions of all eyewear available. The wrap-around Grilamid TR90 frame can be worn either with smooth temples as a sunglass or with a detachable, adjustable strap as a goggle. Vented, removable closed cell foam is included to prevent either lens fogging or wind and debris from distorting vision. The Gunner Photochromic lenses have a transmission rate of 47% while in low light conditions or 15% while in the sun. Rubber nose pieces create a lightweight, comfortable set of eyewear that allow you to truly enjoy the outdoor excursion of your choice. For night riding the Gunner comes with an additional set of clear lenses, making the Gunner one of the few pieces of eyewear for 24 hour use. Features Photochromic lenses, clear lenses, removable goggle strap, carrying case and microfiber cleaning cloth.