I would wear the following: Coast Guard kilt, Belt with Coast Guard buckle. Tennis shirt with Coast Guard emblem, Blue hose and black brogues. Head dress, beret with Coast Guard badge.

When I represent Sams I wear my Hunting Stewart Trews ( I served in the Royal Scots). For casual dress I wear either my family kilt or Royal Stewart Kilt (Royal Scot Piper tartan). Green hose and black brogues, Regimental or SAMS tennis shirt. Depending on the temperature, I wear usually my bush hat which I wore on operations when I served.

Hope this helps, it is just my tuppence.