I'm interested in this comparison as well. My limited research has shown that neoshell is, apprently/relatively, more breathable but less waterproof and quieter. However, the reviews I've read don't really qualify if it NShell is waterproof enough and/or if eVent is breathable enough. One thing I'd like to know is can one sit on wet ground/snow in neoshell and not have it wet through?
There's a few posters from here that I think have used both. IIRC, one states that neoshell is his favorite shell type, but I think that may be for just a jacket. Hopefully, they will see this and chime in.
