The MAAP Gerson sunglasses build in the CR-39 lens performance MAAP puts into their on-bike eyewear, then wrap it in a lightweight acetate frame we forget we're wearing well past the ride. The balanced, midweight build stays comfortable through an easy spin with friends, a bike commute, or the rest of a slow afternoon. What Our Gearhead(R) Experts Are Saying:"I finished a lazy loop along the river and just kept the Gerson on for the rest of the afternoon. Off the bike, it reads like a normal pair of sunglasses, and the lenses were still cutting glare when the sun dropped low on the ride out."