Featuring round pilot lenses, these oversized round Asian Fit sunglasses are designed to fit people with higher cheekbones and wider nose bridges. Erika RB4171F sunglasses feature prescription-ready (Rx-able) plastic lenses that are treated with a 100% UV protective coating.Ray-Ban Erika RB4171F sunglasses available in a variety of colors and lenses include polarized, gradient and solid lenses making these sunglasses ideal for both sunny and hazy days. These Ray-Ban unisex sunglasses include a 100% nylon frame. The bridge measures 18 mm, and the arms measure 145 mm. These sunglasses also feature a lens width of 54 mm.Ray-Ban is the worlds most iconic eyewear brand and is a global leader in its sector. Every model in the Ray-Ban collection is the product of meticulous, original styling that translates the best of the latest fashion trends into an ever-contemporary look for millions of Ray-Ban wearers around the world. From the early Aviator style that emerged in 1937 to the introduction of the classic Wayfarer in 1952, Ray-Ban is a brand that embodies America, adventure, great cities, wide-open spaces, heroism, individuality, and authenticity.