The Saint Laurent SL 431 SLIM appeals to the wearer searching for distinctive sunglasses that flaunt this maker's signature style. Saint Laurent crafts these rectangular frames in high grade acetate, a plant based plastic that’s hypoallergenic and durable. The temples curve inward for stability and boast the Saint Laurent name for a luxurious look. Squared off endpoints and a sturdy saddle bridge add to the retro aesthetic of these handsome sunglasses from Saint Laurent.