Review (1/5): It leaves grip dents in your head and not breathable
This grip band does grip unto the wig and unto your head, it will not slide off however it is not breathable and fits very tight. I purchased the medium although I am a small and it still gripped extremely snug on my head. I ended up taking it out mid-day because I was getting a headache. It also leaves small dents on your head because the grip dots are on both sides of the band.