The ultimate comfort meets professional protection; Temple length and temple angle can be separately adjusted for a perfect custom fit. No more dropping the glasses, saves time and effort when you need to constantly take off and put on. Great for workshop and lab. Lens are made of impact & scratch resistant polycarbonate to provide strength and lightweight for all day wearing. Comfortable enough for everyday work and play protection. Also great for cycling, jogging, and other indoor and outdoor sports. Coated lens to protect from sunlight and prevent fogging, All the eye protection you need from this full-feature well-designed product.