Spotting fake tate mcrae merch

Hello, I am trying to find a gift for my girlfriend who is a massive tate fan and I was looking through vinted and the internet (as not all the merch is on her website) and I was wondering if yall knew how reliable it is to find real merch? Or will it mostly be fakes from Shein and all? Is there any way to recognise if it’s real or not? I know on football shirts there’s certain codes to check if it’s genuine or no.

I’m specifically looking for a tate t shirt/jersey! I have seen a lot of jerseys on the internet but no sign of them on the official website..
TYSM!