Jackets

Traditionalists insist that unornamented brown leather belts, sporrans, and shoes should be worn for daywear. Black leather and silver ornamentation are reserved for evening wear. A gentleman’s Argyll Jacket in tweed or solid color is suitable for daywear for those occasions that would usually require a sports jacket or lounge suit, while an Argyll Jacket in black or a Prince Charlie Jacket are suitable for evening wear. With some ensembles, a fly plaid is added in the form of a pleated cloth in the same tartan as the kilt, cast over the shoulder and fastened below the shoulder with a plaid brooch.

In addition, many kilt wearers have opted for a jacketless approach, especially at hot summer Highland Games gatherings. One style of shirt which is quite common at Highland gatherings is the grandfather shirt, or the Jacobite shirt. These are modern reproductions (or at least reasonably close facsimiles) of the older, pre-Culloden style of shirt. These are full cut shirts with an open, lace-up collar and come in at least a small variety of colors.

http://en.wikipedia.org/wiki/Kilt_accessories