I finished this vest last spring right when it got too hot to wear it.
This is a vest designed by Elizabeth Zimmermann and published posthumously in the book Knit One Knit All.
This particular pattern is called the Waistcoat Vest and I spent almost the whole time I was knitting it saying "That's so cool!" It's really an ingenious design. All of the icord edging is knit as you go. The entire thing is knit in one piece, and except for the shaping, every stitch is knit.
The finished vest is very flattering, and I expect to get a lot of wear out of it this fall and winter.
The yarn is Bartlet Yarns Fisherman 2-ply in Mountain Berry, which can be gotten from Schoolhouse Press, and other places.