Originally Posted by Saucemaster
I know, and I love it. I've been considering taking a number of my shirts to my tailor to have them hemmed like that.
I found one a few years ago at a store in Simons in Montreal. Very short length, straight cut hem, close fitting all around, with a red white and blue check pattern. I removed the pocket, and it looks very similar to GS's shirtjac (except for the bottom two buttons). I don't wear it anymore, so if anybody's interested I'll let it go for cheap.