I've been wearing Hulu for over a month now and I just can't break them in. Some days they feel good for a few hours, but at some point I have arch pain or calf fatigue. They appear to be quality slippers and I really wanted to love them but I don't think that will happen. I wear 11.5 or 12 in shoes and walked in slippers at 12. I think a size 11 would be too small, and a size 12 feels a bit loose at times, but not so much that I'm worried about my feet slipping out. If I don't see half sizes in the future I don't think I'll buy another pair. The quality seems great and it's a pity my feet hurt when wearing it.