Wellllll LOL, I was just about to hit return on one pair. I accidentally bought 2 pairs!!... Big woopsie fifty something dollars later. However, I backed off of returning to look at upc & sizing just to make sure there was no difference and to be sure I sent correct pair back just in case there was. Turns out these are UK sized which I could've overlooked. Luckily there is wiggle room to fit my sons feet or I'd have been looking to send both pair back. Due to the fact these are actually a 12UK/10US, the second pair fit my husband as well and he was happy to accept, so no trip to post office to return. These 12's seem 11-12ish for reference sake..I could be off. Hope this helps.
*Update: Description says US on main description before clicking on anything else (I didn't look at it further by clicking size) will do that)which probably explains why people are saying size is too small. Make sure to refer to UK/US chart in case you need to go up a size. I'd even go as far as to measure your foot and look at product dimensions.. providing it's in description/details. I just googled the diff. I can't speak for the possibility they send both US&UK. Maybe some of you have received US size...? But I did get UK. UK sizing should be what is offered in description, and difference chart. Not sure why it isn't? Not doing so will only bring poor size ratings, just silly. Will take a pic in a few to add. Still happy with purchase as it worked out on this end. No, I have not received any discount of any kind for a review. Just appreciate a heads up on things like this when info is not as advertised. Sure hope company isn't depending on this to solve size issues.