Effortlessly cool, RB4396 Warren is a modern spin on the classic squared silhouette. It features 3D details to the thick unisex frame, crafted from bio-based acetate for an eco-conscious generation. Available in black and fresh transparent colors, with new sustainable dedicated packaging. Ray-Ban sunglasses sold by authorized sellers, like Amazon, are eligible for all manufacturer warranties and guarantees. Click on the Ray-Ban link above the product title to shop the entire Ray-Ban sunglass and eyeglass assortment.