Under Swiss Army Dress regulations, Tenue A is the smartest, formal uniform worn as a walking-out and dress uniform. The exact situations in which one would wear Tenu A vary from unit to unit and across time periods (one former member of the Mech. and Light Troops recalls wearing it for more or less every meal in barracks), as does the exact form of the uniform.
Enlisted Personnel:
Ord. 49:
For enlisted men, Ord. 49 Tenü A simply consisted of their best-kept Tenü B uniform, with dress shoes instead of boots.
Ord. 72:
With the introduction of the Ordonnanz 72 uniform, enlisted men of the Swiss Army received a new style of Tenu A uniform. Worn with the standard polyster-lined jacket, this consisted of a pair of gaberdine wool trousers and a more stylised Schiffchen (lacking the practical flaps and folding peak of the Tenu B version) from the same fabric, along with a special leather belt, which had a similar cut to the field belts worn by officers.
Ord. 72/90
[To add]
Ord. 95
[To add]
PLACEHOLDER IMAGE - the jacket here is in fact an Ord. 49 example, and the details are not shown particularly well. This will be updated in due course.
Officers:
Swiss officers would have to privately purchase their Tenu A uniforms. These were higher-quality, tailor-made uniforms from finer wool, available from a wide range of tailors across the country. Insignia for Tenu A uniforms differs from Tenu B in that it is slightly larger, and is embroidered with gold thread (rather than yellow). Officers would wear Tenu A with dress shoes and a Kepi (made from fine wool), along with a stylised stable belt with a large, square buckle with a Swiss crest.