A new introduction to the ultra-light and easy to wear Liteforce family, RB3721 offers a classic shape with functional elements from injected temple end pieces for added comfort and grip. Available in a variety of classic colors and gold or silver accents with solid, gradient, mirrored or polarized lenses. 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.