The Andorran costume is very similar to the Catalan costumes worn in France and Spain. For women the costume features a full, mostly flowered skirt over a white petticoat; a blouse (sometimes covered by a flowered shawl); long, black, fingerless net gloves; and black espadrilles (cloth sandals) with white stockings. The traditional costume for men is a white shirt, dark knee-length pants, white stockings, black shoes, broad red sashes tied at the waist and the barretina (the traditional Catalan cap).
The stamps above are from a series of 1972 celebrating Andorran customs. They show "Les Caramelles" (traditional Easter songs choir) and La Marratxa (a traditional dance representing the two co-princes dancing with the six parishes), respectively.
You can find Andorra on this map of France: