PHOTOCHROMIC SUNGLASSES: The lens will changes with the the intensity of the ultraviolet light, the stronger UV light , the darken lens. Once you get into the indoor, the lens will return to transparent status. UV400 protection coating, blocks 100% harmful UVA & UVB Rays to protect your eye well.

UV400 PROTECTION: These sunglasses blocks 100% harmful UVA & UVB Rays to protect your eye well when you are doing outdoor sports , such as golf, cycling, driving, fishing, skiing, running, tennis, racing etc. Fits both men and women.

COMFORTABLE & LIGHTWEIGHT: The anti-skid nose pad and silicone temple make the sunglasses fit more comfortable on the bridge of your nose and above the ears. Only weight 29g, great to wear for long periods of time.

MORE FEATURES: PC lens + TR frame make this sunglasses more durable, the lens is also easy to clean after get dirty. The air hole on the temples reduce the the wind resistance when you cycling, make you cycling without burden.

30 DAYS MONEY BACK GUARANTEE: Our sports sunglasses suitable for motorcycles, cycling, driving, running, fishing, racing, skiing and climbing,trekking or other outdoor activities. We promise customers enjoy 30 Day Money Back Guarantee. Customers can return the outdoor sunglasses or get refund in case the purchasing is not satisfactory for any reason.