Jacket needed... waterproof and very breathable

I don#t know about brands, but try to get eVent,is a fabric, is most impermeable and breathable than gore, the problem is that is not windproof.

Is all about the type of membrane Gore is close, so you need to warn up first for the sweat to came out, eVent is open, so it star breathing straight away

My Gill speed pro is eVent fabric and it's very windproof.