Green beret
U.S. Special Forces wear the green beret as a distinction of excellence and uniqueness within the Army.
Tan beret
The sand-coloured beret of the Special Air Service is officially designated the beige beret. The beige beret was worn from 1942 till 1944. In 1944 when the SAS returned to the UK they were forced to adopt the maroon beret of the airborne forces as they became part of that command. When the SAS was re-raised in 1947 as 21st SAS Artist Rifles they again wore the maroon beret. In 1956 however the SAS officially adopted the beige beret again, an attempt was made to match the original sand coloured cloth beret from those in the possession of veterans. This proved impossible to do from existing approved cloth colour stocks held by the British authorities, so, as a compromise and with no authorisation for expenditure on a new colour dye the nearest acceptable colour was selected and approved by an all ranks committee of the Regimental Association. In 1958 all SAS personnel switched from maroon to beige. Personnel attached to the Regiment also wear this beret but with their own badges in accordance with usual British practice.