I ordered these first in the full slipper. They were very heavy and the top part was so hard it bruised my foot after wearing them indoors for five minutes. I also overheated wearing them. I returned and purchased these. Theyre still a bit heavy but the arch support is great and they don't make me hot. The tops are adjustable. If I adjust them to be fitted they are still a little stiff at the top and hurt the tops of my feet so I leave them a little loose. This isn't ideal since I have to hold them on my feet like you would a loose flip flop, which is tough when you have foot issues like planters fasciitis. I have small skinny feet so I think someone who has a little more weight on them might find these a bit more comfortable than I do but they are the best Ive found so far since my doctors have strongly advised from walking around the house in flip flops or bare feet. The shoe is very sturdy and can handle the outdoors should you wish to walk to mailbox or whatever in them.