The official Girl Scout uniform for girls is a white shirt (either
their own or the official Girl Scout polo shirt for their program
level), their own khaki pants or skirt, and the official program level
tunic, vest, or sash.
Uniforms have been a Girl Scout tradition since 1912, where the
first uniforms offered girls and adults freedom of movement and helped
cover social and economic class differences.
Girl Scout Ambassador Sash & Vest.