I know this isn't the right forum but how much do you think I could sell it for. I asked on reddit and someone messaged me saying they would give me £1100 but if they are offering that its probably worth a lot more?

Found this: greatland-osaka.com/items/6485b30f5348c525e6f762c5

I'm pretty sure it's real im just not 100% sure, i was told it was only worn a few times