I just think the Honved shirt is... a bit shit?
This particular offer sounds good from a quick glance - as I prefer a retro shirt over the modern ones. But I could just spend £40 on a shirt I actually want and would wear, rather than £60 on the shit Honved one, just to get another free.
The fact they haven't sold out a "limited edition" shirt and are now having to do a promo on it to try and shift units says it all!