Oliver Peoples Mrs. Federer Sunglasses pair a bold cat-eye acetate front with metal temples and high-performance Sierra NXT lenses for enhanced contrast and impact resistance. The design blends refined style with sport-inspired details and signature Roger Federer elements. Key attributes: Cortado | Acetate | Sierra NXT lenses with color-enhancement | Impact-resistant elastomer lenses | Scratch-resistant hard coating | Lightweight, high-optical-quality lenses | Adjustable rubber temple tips to improve hold | Universal-fit nosepads for broad compatibility | RF logo engraved on lens | Bold cat-eye silhouette | Metal temples with filigree detail | Custom octagonal temple plaque | Rubber temple tips with inset logo | Dimensions & fit: Lens width: 55 mm | Bridge width: 18 mm | Temple length: 145 mm | Lens height: 45 mm | Frame size: 55-18 | One size (best for most faces) | Universal fit nosepads | Standard face coverage | Composition & care: Frame: Cortado acetate | Lenses: Sierra NXT (optical elastomer) | Wipe lenses with a microfiber cloth and approved lens cleaner. Avoid abrasive materials and harsh chemicals. Store in the protective case when not in use. Do not expose to extreme heat.