Cut in deep navy wool twill, this shirt carries the discipline of a classic button-down, then lets it slip. The silhouette is clean and architectural, with a centre-back vent that opens the structure just enough for movement, but a mohair rat-tail breaks rank, an unruly detail moving with a quiet impulse of its own. Tall sculpted cuffs and a single chest pocket, placed with almost suspicious precision, leave the shirt balanced with a sober sophistication subversive enough to stay interesting.