Men's Fashion of the Early 1900's

The long, lean and athletic silhouette of the 1890's persisted. Men's hair was generally worn short while their beards were less pointed than before and mustaches were often curled. Three-piece suits consisting of a sack coat with matching waistcoat and trousers were worn. Men always matched their coat and waistcoat with contrasting trousers or had a matching coat and trousers with a contrasting waistcoat.
Men's trousers were shorter than what they had worn several years back. They often had cuffs and were creased on the front and back using the new trouser press. This press was designed to smooth wrinkles and to form a crease in men's wear. The presses were mainly used by hotels and businessmen. Once this press was publically used, it had change society's way of wearing clothing. Men wanted to look clean-cut, precise and stylish. Since men's fashion was closely identical to each other than women's styles, this press impacted a dramatic change. It spread rapidly through the high-class businessmen and eventually into the homes of the middle-class.

Website link:
http://www.costumes.org/history/100pages/mensfashhist.html