Jeans and a T-shirt have been described as the “casual uniform”. With the popularity of spectator sports in the late 20th century, a good deal of athletic gear has influenced casual wear, such as Adidas suits, running shoes, and track clothing. Clothing worn for manual labor also falls into casual wear. Basic materials used for casual wear include denim, cotton, jersey, polyester, flannel, and fleece. wear.
Casual wear is typically the dress code in which new forms of gender expression are attempted before being accepted into semi-casual or semi-formal situations.