>>"(2007) version is both more breathable and more rain resistant"
"more breathable" - that sure leaves a lot of room for improvement when compared to their '06 virtually unbreathable Ion. How much is an imprecise qualitative marketing term like "more"? I'd like to see it quantified.
More "rain resistant"? Maybe? I'll have to remember to try to carry some water in my '06 Ion "water bladder", and see if it wets through.
Until Marmot comes clean on this issue and does the honorable thing and makes good to all those who purchased the Marmot Ion VBshirt (hey, isn't that what the Gov't allows Corporate losses and tax write-offs for???), the way i feel now, i wouldn't spend another penny on any Marmot product, or recommend any Marmot product to a friend; in fact, i'll steer them away from Marmot if i can; at this point, i just don't know what i'm getting if i buy Marmot. That said, i need a left zip mummy bag and Marmot is the only one, off the top of my head, that i know makes them. Hmm..., have to do some research (Montbell???) or eat my words!
In keeping with that earlier post about the knockoff "The Mouth Face" product line, i think perhaps that they also manufacture the "Moremouth" (a lot of talk and little performance) product line, and could it be(???) that manufacturer was contracted with to supply the latest Ion i purchased? Don't know.