These throwback frames come with polarized lenses and a clear metal base. Pair with a leather jacket and your fav denim! The clip on accessory allows you to wear these as sunglasses with a clear base or fill the base with prescription lenses! Specs: 49-24-143 mm Frame Width: 147 mm Clip-on Sunglasses with 100% UV Protection Protective Hard Case and Microfiber Cleaning Cloth Gunmetal with Blue / Black Polarized Lens Unisex Design Clear Prescription Ready Base Lens