Details The Prep looks like it's ripped out of a '60s yearbook, but really it's a Smith original from 1988. The latest addition to Smith's Archive Collection, these sunglasses were manufactured using the same techniques common in the '80s but rare today. The only thing Smith updated are the crystal-clear carbonic lenses, which are also available with polarization to cut glare. Lens Carbonic lenses offer impact resistance and clear optics 100% UV protection Frame Stainless steel frame Details N/A Size Medium fit, small coverage 6-base lens curvature provides a modest wraparound fit Smith Prep Polarized Sunglasses