1. When driving, if you exercise in the chaos of the traffic, you will not come from the sun and the front of the vehicle a lot of reflection troubled;
2. When fishing, the water shines in the sunshine, but you do not feel uncomfortable, but feel comfortable away: reflex is gone;
3. skiing, the vast snow field, you do not have to worry about reflective and ultraviolet, you can enjoy the glide;
4. When the rain, the rain flow of the road traffic signs clearly presented in your eyes;
5. When the holiday, more ultraviolet light is effectively blocked, so you enjoy this rare leisure time.