That outfit also reminded me of a brand I keep seeing pop on Net-a-Porter, Aubin & Wills. It is a sister line to Jack Wills, which looks like a British version of Abercrombie & Fitch. For a British line, they actually have perfect French style stripe tees that are all the rage right now. Act fast though, their pieces don't seem to last long on the site before they sell out.
Disclosure: If anyone was wondering, I don't get paid to promote certain lines. I post what I love at the moment, which would be that striped boat neck tee above. POCKETS! Though I want the tee next just as much. Sigh.