Zara's quality leaves much to be desired, not to mention their stuff is relatively expensive. I'd try out that Uniqlo Sweater Jacket, but I'm curious if it has side pockets in addition to the chest pocket.
Can anyone recommend sizing on Gustin shirts? It looks like Slim Medium may work.
I usually wear Small in JCrew/GAP / 21" chest, 18" shoulders, 15.5" neck. I hear Gustin shirts shrink a bit / run small.