What’s your chest measurement? I think that’s key in understanding sizing.
I’m 1.83 tall, 72.5 kgs and have a medium sized club jersey that fits, but is very close to being too tight. I’ve gone for a large this time round because the direction of travel makes that prudent.
I’m the same height, heavier and went for a medium. Chances of it fitting are looking slim but I know I’ll never wear it if I’d gone up a size and it ended up loose
Fwiw I'm 6ft2 & 68kg. I have 2 milltag carter usm jerseys, 1xL 1xM, think they're club not pro tho.
L is baggy the M is a good snug fit.