I was worried about the size, I shouldn't have been, it is a medium size even if slightly bigger and it looks like the fabric that the torso is made of does what it says.
Breathable, cool, lightweight
Good quality for the price, centre 'green' piece wasn't what I was expecting, it's a stretchy nylon material. And the sleeves seem to be quite heavy compared to it (makes for a strange feel when wearing). But overall the flecktarn pattern is mostly accurate, and it does it's job.