You can admire this sturdy-looking yet fashionable pair of socks, but you can’t purchase it. The cozy foot warmers sit behind glass in a sleek, minimalist display, loom large on billboards and show up online next to a counter-intuitive “don’t buy now” button. What gives? Ad agency Humanaut, in its first work for mission-driven brand… https://www.adweek.com/brand-marketing/with-a-counterintuitive-message-the-greatest-sock-never-sold-is-helping-americas-homeless-shelters/