Handmade from sustainably-harvested wood, and with a a double bar metal bridge, the Proof Polarized Grove Sunglasses' frame gets you in touch with your wild side, while the CR-39 polarized lenses keep your view clear, colorful, and glare-free. From the record stand at the flea market to riding your bike down to brunch, the Grove goes with you in unique, one-of-a-kind style and with reliable eye protection. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.