They are loose in the heel but I?m ok with it because I can wear heavy socks. There are some design issues with this product. I Loveeeeeee it so much ! Theyre way too tight to slip your foot into. The worst part of the entire affair was the non-stop emails from "customer service". They dont auto connect when the get jostled in my purse. The boa feather material is also very fluffy and soft If I could I would give them a 4. The only downfall is that if you cross your feet, the velcro at the top will catch on the fabric of the other sandal and cause it to "fuzz". Very snuggly