In reply to Norrie:
Whats the montane zero jacket, can´t find anything on google... An insulating warm jacket, or a VR like thing?
I always wonder how people 'pop on a belay/down jacket on when belaying', I can imagine that on Stanage, but not when you´re halfway up a gully in Scotland, standing on a tiny ledge in typical Scotting conditions.
I mean, I cannot imagine climbing in my puffy down jacket (I have a Fjällraven polar jacket), nor putting it back in its stuffsack really, as I need to be able to roll it somehow. Not stuffing it means that it takes as much room as a small bus.
So how does this work, do people do silly things with taking on and off jackets halfway up long climbs, or do they just climb in their belay jacket?