Flip-up sunglasses with UV400 protection. Flip-ups attach to the frame of your prescription glasses.

Note we carry flip-up's but they are difficult to help size and there isn't a great way to measure if they will fit well or not, a lot of it is just luck. 

The best way is to measure your glasses is in Millimeters total width x total height. As a general rule add 2mm's to the height and width to help make up for how the flip-up attaches to your glasses.