Ordered these from an Ebay seller from China, really nice pair, but unfortunately comes up on the small size so did not fit my son, so we have ordered a size up. The seller did not accept returns due to postage not being cost effective for us and advised us to sell it on. These are size M, but actually comes up on the small side so would say size S (small) for men in the UK size. We paid just over £40 quid for these.
eBay