Whether you're gearing up for a trail day or training for a 12 hour endurance race on your mountain bike, the Julbo Race 2. 0 Sunglasses with Zebra Photochromic lenses will see you through to the finish line. Featuring Julbo's top of the line Zebra lenses, the Race 2. 0 will adjust to the always changing light conditions you encounter while you train and race, while their anti fog coating resists fogging when you're pushing it hard up a steep climb during a cool early morning ride or run. The frame and lenses work together to push breezes along the sides of the lenses to keep air circulating and reduce heat buildup, and the curved, wrapping shape offers a wide field of vision. Being apart of Julbo's performance line of eyewear, the Race 2. 0 features Grip Tech temples and a 3D Fit nose that can be adjusted to deliver a secure and comfortable fit against the face, so you can use your hands to run and not push your shades back up your nose. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer andor birth defects or other reproductive harm.