Ray-Ban Boyfriend Reverse sunglasses feature an inverted (reverse) lens design that follows the cheekbone for a flattering fit and reliable sun protection. Key attributes: Brown | Nylon | 100% UV protection | Anti-reflective coating | Reverse lens design for improved fit | Lightweight construction | Square shape | Inverted/concave lens design | Transparent frame | Dimensions & fit: Lens width: 56 mm | Bridge: 18 mm | Temple: 145 mm | Lens height: 47 mm | Frame width: 133 mm | Universally-flattering fit | Designed to follow the natural curve of the cheekbone | Composition & care: Frame: Nylon | Lens: Polyamide | Wipe lenses with a microfiber cloth and store in the protective case when not in use.