Boys mostly wore long trousers in the 1850s, but we begin to see boys from affluent families wearing variously styled suits with bloomer knickers. These bloomer knickers, called knickers, were a practical alternative to long trousers for active boys. The bloomer knickers were loose pants gathered at or below the knee. They were often worn at calf length with long stockings in America, but sometimes socks in France. Styles varied from country to country. This style became much more common in the 1860s.