Fashion in the period 1900–1909 in the Western world continued the long elegant lines of the 1890s. Tall, stiff collars characterize the period, as do women's broad hats and full "Gibson Girl" hairstyles. A new, columnar silhouette introduced by the couturiers of Paris late in the decade signaled the approaching abandonment of the corset as an indispensable garment.
With the decline of the bustle, sleeves began to increase in size and the 1830s silhouette of an hourglass shape became popular again. The fashionable silhouette in the early 20th century was that of a confident woman, with full low chest and curvy hips. The "health corset" of this period removed pressure from the abdomen and created an S-curve silhouette.
In 1897, the silhouette slimmed and elongated by a considerable amount. Blouses and dresses were full in front and puffed into a "pigeon breast" shape of the early 20th century that looked over the narrow waist, which sloped from back to front and was often accented with a sash or belt. Necklines were supported by very high boned collars.
Skirts brushed the floor, often with a train, even for day dresses, in mid-decade. The fashion houses of Paris began to show a new silhouette, with a thicker waist, flatter bust, and narrower hips. By the end of the decade the most fashionable skirts cleared the floor and approached the ankle. The overall silhouette narrowed and straightened, beginning a trend that would continue into the years leading up to the Great War.
An early 1910 survey of wealthy high school senior students at a private New York City girls' school found that each spent an average of $556 ($14,291 today) annually for clothing excluding undergarments, and would have spent four times that amount with an unlimited budget.
Unfussy, tailored clothes were worn for outdoor activities and traveling. The shirtwaist, a costume with a bodice or waist tailored like a man's shirt with a high collar, was adopted for informal daywear and became the uniform of working women. Wool or tweed suit (clothing) called tailor-mades or (in French) tailleurs featured ankle-length skirts with matching jackets; ladies of fashion wore them with fox furs and huge hats. Two new styles of headgear which became popular at the turn of the century were the motoring veil for driving an sailor hats worn for tennis matches, bicycling and croquet.