Smith Optics Prep Carbonic Adult Lifestyle Sunglasses (Brand New) Hardwaretools The proprietary PivLock interchangeable lens

The proprietary PivLock interchangeable lens system makes lens changes easy

We use a triple layer construction as opposed to a single thick layer as the layers can move relative to one another further improving impact performance

Added eps and new headform shape for improved impact performance

Flexible 3 point synthetic rubber strap

Smith Optics Prep Carbonic Adult Lifestyle Sunglasses (Brand New) Hardwaretools The proprietary PivLock interchangeable lensSmith Optics Prep Carbonic Adult Lifestyle Sunglasses (Brand New) 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 our Archive Collection, these sunglasses were manufactured using the same techniques common in the '80s but rare today. The only thing we updated are the crystalclear carbonic lenses, which are also available with polarization to cut glare. Carbonic lenses offer