Used all kinds of shells when climbing and trekking, including event – sold most of them as I’m constantly searching for the one do it all jacket, but the one material that has really stood out for me as being a truly breathable and waterproof membrane has been neoshell.
They make it in two varieties; hardshell and softshell – but both are waterproof, the difference is that the softshell has a wicking inner and I really like it – I’ve got the marmot zion (but don’t like the hood! doh!) and can race up mountains without being left with that boil in the bag feeling.
Don’t get me wrong, you still sweat when you are working hard but the fabric just lifts it off you and gets rid of it.
Its better than event in my opinion.