1.Professional Design - Adjustable shoulder straps make sure ski fit everyone; Elastic band and light weight make you comfortable to wear and won't put pressure on your head; With a safe and elastic ABS frame, the are flexible and bendable; Thick inside the frame Soft sponge, so you won't feel discomfort and irritation when wearing. You will feel comfortable when exercising outdoors. 2. Windproof and Dustproof UV400 Protected PC Lenses - Lenses are made of high quality aviation PC material with windproof, dustproof and UV400 protection, there is thick foam inside the frame of ski bike glasses to ensure fresh air circulation. Your eyes will get 360 protection from glare, harmful rays, bright sunlight, strong wind, dust, thick snowfall or UV 400 and more with these snowboard . 3. SAFE AND COMFORTABLE - With super elastic ABS frame, durable and impact resistant PC lenses, these snow can protect you from bright sun, strong wind and thick snowfall, the can almost protect your eyes. The thick, soft sponge layer on the frame sits around the eye socket for extended wear without discomfort or irritation. 4.Suitable for all faces and different ages - Scientific design, adjustable shoulder straps and flexible frame make these motorcycle suitable for everyone, women, men, children, girls, boys. It is also compatible with most helmets, just enjoy it with your friends or family.