This frame size is X-Large with a hinge to hinge measurement of 137 . Ideal for wide faces. REVERSE LENS: Unique technology shifted the conventional lens shape from convex to concave for the ultimate visual experience. ADVANCED ANTI-GLARE TREATMENT: Reflections reduced up to 70% at specific wavelengths that the eye is most sensitive to. FRAME FEATURES: RBR0102S Caravan Reverse in gunmetal with dark grey concave bio-nylon lenses. The reverse lens is precision-engineered to fit every face shape. The frame design follows the natural curve of the cheekbone. 100% UV PROTECTION: To protect your eyes from harmful UV rays, all Ray-Ban sunglasses offer 100% UVA & UVB protection. CASE & CLEANING CLOTH INCLUDED: This pair of Ray-Ban sunglasses come with dedicated sustainable Ray-Ban Reverse packaging, made with recycled materials.