I'll second that. I have an Apolis jacket with such a zipper configuration. It allows me to keep the slimmer profile while walking around without compromising comfort when I sit, since I can just pull the bottom zipper up a bit.
Random thought: I hate myself for loving every Jcrew look I see. I would buy every vaguely woodsman-esque thing on Context if I could afford it. This is a new thing. Up until about 2 months ago I was convinced that I wouldn't jump on the backwoods-Americana bandwagon. Now the weather is turning and all I want to do is cover myself in in flannel and wool. I'm even set on Katahdins as my next footwear purchase. Every plaid shirt I see results in a petit mort. What is wrong with me? I used to hate all this lumberjack bullshit.
The hardest brand to buy sight unseen - Rick Owens and DRKSHDW. I have no idea how people do it. They are cut to fit... peculiarly. The jackets are narrow, with an assymmetric hem that is considerably longer in the front than the back, and the arms are narrow and super long. No wonder so much of it ends up in Sufu marketplace.
Easiest brand to buy online (knits and tees) - Margiela. You have to be a mutant to look really bad in a Margiela knit in your proper size.