Proof is a sunglasses label launched in 2011. With a focus on eco-friendly design, Proof creates a range of sunglasses from wood. Whether prescription frames or polarized lenses, the American brand uses maple wood from American and Canadian forests to create its designs. Individually handmade by skilled artisans, the line of Proof designer sunglasses are an ideal option for those looking for something different. Coated with a water protective layer, the line of Proof designer sunglasses are made to last.