I purchased this item from this site before. The seller mentioned they bought it from Amanojak. Online, and I believe you can tell it's authentic by looking at the included accessories, the tips of the shoelaces, etc. I think it's a beautiful item with no noticeable scratches, but please understand that it is a used item, so only purchase if you are okay with that. Regarding the size, in my personal opinion, it's not made to be oversized, so I think those who usually wear 26-26.5cm shoes should be able to wear it without any problems. Please note that cancellations, returns, and refunds after purchase are not accepted to prevent trouble and swapping of items. Thank you.