http://leaf.arcteryx.com/default.asp (http://leaf.arcteryx.com/default.asp)
The military and law enforcement divison... For those not familiar Arc'teryx makes some of the highest quality outdoor equipment for civilians..
My wife has one of their packs now for 10 years...
I have never tried to purchase from them, but I bet they would sell to CAP members since it's just clothing.
Arc'teryx is some really expensive stuff, and for CAP purposes, not necessary. You can get stuff that works just as good for a lot less, and you won't kick yourself if you lose it or mess it up.
Got a long sleeve Army PT shirt made by them on the cheap... like it a lot.