Sculpted with a streamlined design that's great for small to medium sized faces, the Catlike D'Lux Micro Sunglasses optimize clarity and comfort during fast paced road rides and white knuckle singletrack adventures. Its TR90 frame is highly flexible, resisting breakage in the case of an accidental drop or crash. Two choices of lenses, both the Bluebacker and Photochromatic, block 100% of harmful UVA and UVB rays, while simultaneously preventing fogging during sweaty uphill slogs and humid summer rides. The D'Lux Micro Sunglasses give you the choice of selecting either a Blueback or Photochromatic lens. The Blueback lens drastically reduces glare, while enhancing contrast and natural color definition. Automatically adjusting to changing light conditions, the Photochromatic lens lightens or darkens its tint to accommodate overcast to sunny conditions. Lenses are interchangeable in the case of a nasty crash or lens scratching mishap.