This product shrinks about 4 shoes sizes if you leave them out in the hot sun!!! Yes it shrinks that much! I can't even get my foot into them now. This is about my 6th pair of Crocs, none of my other Crocs have ever shrunk, I leave them all in the same place on the patio in the sun when I am not wearing them. This pair must be a completely different type of plastic. I tried to return them and get a new pair, but this seller refused because I waited more than 30 days. This is clearly a product failure and it should be replaced or refunded by the seller. But I can't get a hold of them? and they have their Amazon site setup so no returns can happen after 30 days.  BEWARE BEFORE YOU BUY!!! THEY WILL SHRINK AND CURL IN THE SUN!!