Deep taupe and deep blue sit on opposite temperature ends, and that's the whole point — the contrast keeps a simple pant-and-sweater pairing from going flat. The Charter Twill's stretch cotton holds a crease without acting like it's trying, and the quarter-zip layers over a tee or under a jacket without adding bulk. Think gate-to-gate: fine through security, still fine six hours later. One pair of pants for the whole trip, and nobody needs to know.

Finish with white leather sneakers and a canvas weekender bag.