That small loop on the back of a button-down shirt isn’t decorative — it’s a locker loop with a history over a century old. It originated on early 1900s U.S. Navy uniforms, allowing sailors to hang shirts on hooks in tight quarters without closets or hangers.
Later adopted into civilian fashion, especially on Ivy League campuses, the loop became a symbol of classic style. Today it’s still practical for travel and remains a subtle design detail that blends function, tradition, and timeless fashion.