Inspired by the flow of water from melting snow as winter turns to spring, reinvigorating the land all around us, Zeal created the Cascade Sunglasses. With a construction that helps protect all of our favorite outdoor playgrounds, these shades feature a frame made from Z-resin, which uses natural castor bean oil instead of crude oil, while the E-llume lenses use a plant-based bonding agent instead of a petroleum based bonder. Zeal proves that going green doesn't mean protection or style are going to be sacrificed, with the Cascade filtering 100% of harmful UV-rays and a style that pairs well with any environment. Represent your environmentally-conscious colors with a green canvas carrying pouch for when the clouds roll in. 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.