Sport sunglasses in a modern style with a lightweight frame and specially interchangeable polycarbonate lenses featuring a reading area for farsighted drivers. The glasses are equipped with photochromatic polycarbonate lenses that provide 100% UV protection. The stronger the sunlight, the more the lenses automatically darken. With one pair of lenses, you receive eye protection in categories 1, 2, and 3. The lenses are designed to protect against sun, dust, and wind. The frames of the BBB sports sunglasses are made from TR90 Grilamid, a lightweight and flexible material that is also durable and very comfortable to wear. Grilamid has several very positive properties, such as high thermal stability, flexibility, as well as crack and break resistance. This makes Grilamid the perfect material for BBB's eyewear frames. You can bend your glasses when changing lenses without worrying about cracks or breaks. PH lenses are self-tinting and automatically adjust to changing light conditions. In bright light, the lenses darken, and in lower light, they return to nearly clear. The covered light range is particularly unique. BBB lenses are so adaptable that they allow 85% - 17% of incoming light to pass through. Lens type: photochromic. Strength: +1.5.