had one oos error with them before but bought quite a few items without any problems, far too big / well established to be selling fakes imo, the shops been around for years.
Really good prices so heat from me OP, another poster had me looking at trustpilot and some people were saying fakes so I’ll give it a miss but very well could be genuines, just seems too good!
3.95 delivery ?
Trustpiolt reviews aren't great. Haven't voted either way
Just be aware: large here is classed as a 40” chest...that sounds more like a medium fit to me. I’d size up if I were you.