How warm is this jacket? Does it require...
How warm is this jacket? Does it require a bunch of midlayers or is it fine with just a shirt under it?
you really shouldn't go below 10 K in breathability waterproofing, with this coat your probably gonna get wet and cold more easily and will need more layers underneath. I have a 20 K jacket and wear only 1 layer except for when the temps drop below 0 and i never have a problem staying warm