These shoes are unbelievably cute!!! The Bow Is made from a  velvet material (just in case it doesn't say so in the description). The back part of the shoe slips when I walk but it's mast likely the cut of the shoe and not a sizing issue,  I'll be getting gel  heel inserts so hopefully that will solve that problem. But I'm very happy with these so far and am looking forward to wearing them to a wedding later this month :)