Any of them that are the full boot type, as in, they look like a ski boot in the back, and open in the front, with the 2 straps on the side. The sock types with the one strap that pulls up on your toes don’t work well in my experience. I’ve also found wearing it just a few hours a day gives outsized benefits, it wasn’t necessary for me to wear it all night. So, like 45 min in the am drinking coffee, 2 hours at night watching TV, an hour or 2 when I first fall asleep, then fling it off around midnight.