Early in the 20th Century, much of the best material returned, acquired by collectors like Maurice Sandoz.

FORBES: Collecting

It waned when it seemed to offer no obvious material gain, and returned to the specialised area from which it came.

ECONOMIST: Ren�� Thom

By the '90s, flat-front pants had returned, catching on more fully in 1999, when the broader use of stretchy material in men's clothes attracted more men to the style.

WSJ: The Pleats Plea: Wear These