Frame Features: RBR0501S Boyfriend Reverse Features A Bio-Acetate Square, Transparent Dark Grey Frame With Silver Grey Mirror Bio-Nylon Conave Lenses. Reverse lens collection is precisely designed to fit any face shape and provide all-day comfort. 100% UV Protection - To protect your eyes from harmful UV rays Ray-Ban sunglasses include 100% UV coated lenses. Reverse lens: Ray-Ban Reverse introduces an innovative design that moves the lens shape from convex to concave. The concave lens delivers the scariest and most accurate vision, with high-performance AR reducing glare by up to 70%. DURABILITY: Bio-nylon lenses have at least 41% of biological content generated from renewable sources such as castor oil, and bio-acetate frames contain at least 67% biodegradable materials made from renewable sources and are mixed with biodegradable cellulose acetate from cotton or wood pulp. Storage Bag and Cleaning Cloth Included: This Ray-Ban Sunglasses comes with a durable Ray-Ban Reversible package, made from recycled materials. Visit the RAY-BAN brand store: Click the Ray-Ban link above the product title to purchase the full range of Ray-Ban sunglasses and glasses