These run very big and I feel like the where defective because I have other Sanuks that are a size 8.  When I held them up to the 8s that I have they were cleary bigger.  When I returned them to the seller, they said there is nothing wrong with them and kept $6.00 of my return money for the shipping.  I will never order from this seller again.  I also recommend to anyone that has a manufacturer's defect problem... to take a picture of the problem before you ship it because then it is your word against theirs without it.  They have not responded to any of my emails in regards to disputing their claim.  I will only order my shoes that are shipped directly from Amazon.