Before you leap from the roof to the pool, remove your POC Eye Did Sunglasses. Photochromic lenses automatically adjust the darkness of their tint to match the light around you, be it the top of the house or the neighbor's swim area. Although the NXT lenses sport a water repellent coating and a tough, impact resistant construction, it's always smart to remove eyewear before you hit the water. Once you surface, toss these over sized shades back on your face and bask in the glory of your new found hobby at least until Mr and Mrs. Johansen call the cops. 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.