Hakama
From BelegarthWiki
Hakama are baggy, pleated martial arts pants often worn in Aikido. Unlike the GI martial arts pants, Hakama are made to fit anyone of almost any size because they are tied on to the individual wearing them.
Hakama are popular in Belegarth for both their period look and relatively easy construction. Cheap hakamas can also be purchased online from martial arts dealers such as Century Martial Arts and E-Bogu.