I wear this for Krav Maga training where there is considerable contact to include sparring. The mask stays on my head and rarely slips down even with heavy activity. It does get harder to breath when saturated with sweat so I bought another to change into for longer sessions (but I’m a heavy sweater).
This is a very comfortable mask, and great for the gym. BUT - disappointing for runs. After about 3 miles (for me) it absorbs so much sweat it's restrictive enough I can't continue with it. If you run with shades, they'll fog more than you want too. One more observation: the material has a weird muffler effect on my voice - which may be a positive for anyone else in the gym...
All in all, good for workouts, not for runs. Might be ok for the colder weather now, but...maybe not.
I bought the mask for my son who runs Cross Country at his school. He prefers it over any of the other masks.
This mask looks great and is comfy, and it's nice to just wear for everyday use on a chilly day. But it is not particularly breathable, and gets absolutely soaked when I do anything that works up a sweat. I can literally wring out the sweat after a bike ride, it's pretty gross.
Order a sports mask for use during workouts. Seems like a good mask. Unfortunately, after a couple of uses, the ends are curling and it does not want to keep its shape. Too bad as really liked it my first use.