Gater is ok but the masks fit much better
I bought a couple of the gators for running in the cold because the masks fit so well. Unfortunately, the gator does not stay away from your mouth like the mask does. Because the filter is up against your face it makes it impossible to breathe while running. They are fine for keeping around your neck and pulling up when you need them but the gator does not work as well as the mask. Because of the design the gator does not work well to cover your ears either. I have a buff and another generic type of gator that both work much better for running. So I would not recommend buying a gator for exercise but they work fine for normal use.