I take a size 13UK or 48 Euro, so I got 14US. Way too big. About an inch too long at the back and a struggle to keep them on. Apart from that they seemed nice (I have 13's coming).

So I chose to send them back, as Amazon have a refund policy and it said refund 'up to' $15 for return shipping. Return post cost A$28.90 (I'm in Australia) as I had to use air (sea cost A$19.90 but would take too long as they only give you a month to get them back). They refunded a measly A$5.44.

Now I'm pleased there is some shipping refund, but not at how misleading the amount you get is. I thought given what it cost I'd get the full $15.

Now I have tried the 13's I wish I hadn't bothered. Although the correct size and comfortable, they are impossible to keep on the foot. The thong version is much better.