I ordered size UK9, I usually wear a UK8.5 so erred on the side of caution.
These flip flops are a very bizarre shape. The actual sandal is the right size to be a size 9. However, the strap is located far too near the middle of the sandal, so when you wear them, there is about an inch and a half of sole beyond your toes and no room for your heel!
I've never seen anything like it! I know we all have different sized / shaped feet but this is silly.
I will be uploading a picture of the sandals before returning them to Amazon.
The sandals themselves look like they are made well and of high quality material, I am disappointed they don't fit.