Weather you are riding on the road or dirt, the flexible unbreakable Forceflex frames will stick to your head to protect you from road and trail debris. If they hit the ground, no problem. The flexible frame makes them unbreakable and the diamond lens coating will protect the lenses from scratches. Fitted with premium lenses offering 100% UVA, UVB, and UVC protection, these sunglasses deliver clear vision and lasting comfort. Military-grade impact absorption and a lifetime guarantee ensure these sunglasses perform in any environment.