Agree... The Fieldsheer Titanium Air is slightly more comfortable than the more expenive JR Phoenix and zips to any of their pants.
I'm supposed to write up a review of the two for Higgie, but havent gotten around to it yet.
BTW, for ladies sizes, Laura has the Spidi Net jacket (she's 5'2") which I think is better quality than either the Fieldsheer or JR, but it retails for ~$240 vs. $99 for the Ti Air.
--Fillmore