Bought a white and black T2 and it came yesterday, so can see now it is a touch thicker than polyester jerseys. The finishes on the zips, pocket liners looks very good.
Yeah it's been my 'best' jersey since I got mine in 2013 or something. And by 'best' I don't mean one that I only wear occasionally, I mean the one I wear the most (cos it's the best)!
Yeah they're quite warm. If it's properly baking (which means above 24 in this country for me) I wear a thin cheapy polyester jersey I have.