I bought this for its convenience of wearing it with a sun visor and sunglasses on a hot summer day. I have had laser treatment and I need to shield my face from the sun. The vent around the nose provides ventilation so my breathe does not fog up my glasses. I can wash it often and it dries quickly. But one drawback is the loops that hook on to the glasses being too short. It the legs of the glasses are thinker, the loops would not fit. Also even they fit, the mask is hung so high that cuts right beneath my lower eye causing discomfort. Would like to see a longer and/or adjustable loop.