Ray-Ban is just one of the subsidiaries of Luxottica and has a line of glasses, which contain leather:
Outdoorsman Craft RB3422Q are designed with Nature enthusiasts in mind. Inspired by the Aviator Classic, they have unmistakable iconic features but are handcrafted with outdoorsy materials. That means things like hand-stitched deer leather on brow bars and temple pads.
Luxottica Group SpA engages in the design, manufacture, and distribution of fashion, luxury, sport, and performance eyewear. It operates through the Manufacturing and Wholesale Distribution and Retail Distribution business segments. The Manufacturing and Wholesale distribution segment specialize in the production and sale of its house brands and designer lines of mid to premium-priced prescription frames, sunglasses, and sports eyewear. The Retail Distribution segment operates through the marketing of its retail brands which include Ray-Ban, LensCrafters, Sunglass Hut, OPSM, Laubman & Pank, Oakley O Stores and Vaults, David Clulow, GMO, and its licensed brands Sears Optical and Target Optical. The company was founded by Leonardo del Vecchio in 1961 and is headquartered in Milan, Italy. [Source: MarketWatch]
Company Website: http://www.luxottica.com