Breathability was okay, a lot better than I’d used before. All the zips (3 of them, the main zip the last to go) went between mid march – june (So I hadn’t used it much)
The shop (evans cycles, my mum bought it) said it was a big problem, and there a lot of people with this problem
On the next one (warranty swap), the main zip went after 2 rides
On returning to the shop again they took it back and offered another £30 to spend on a new jacket. Spent a little more than the £110 I was being offered (just because I couldn’t find anything that was long enough and in a good colour) on a Gore (a black one, I can’t remember the name) and its SO much better.
So much more breathable, I’ve worn it for most of, if not all of every ride since I got it. I rarely wore the altura for most of a ride and If I did I found climbing pretty horrible because of the overheating, which at the time I didn’t think was that bad
