Jake and Reese shop A.P.C.
I've had a look at their collection online and I'm surprised Jake was able to find enough in A.P.C. to please him and to fill that shopping bag. Though the faithful Yelpers speak highly of their line - nicely tailored basic, simple design, slim fit shirts, raw denim jeans. That sounds like Jake. Except when he's wearing a no-structure lumberjack shirt.
Photos courtesy of IHJ.