Monthly Payment at 4 installments with AfterPay. These authentic RB1973 901/31 sunglasses have Black Plastic frames and are available online for a discounted price at SmartBuyGlasses. Ray-Ban sunglasses are the perfect way to shield eyes from harmful UV rays whilst staying a step ahead of the fashion curve. Lens color: Green. Lens material: Glass. Collection: Women 2020. Size: 53. Condition: new. Warranty: 24 months. UPC: SG471418. Authencity guaranteed.