Highland dress
noun
the historical costume, including the plaid, kilt or filibeg, and bonnet, as worn by Highland clansmen and soldiers
a modern version of this worn for formal occasions
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012