There is also a version for wear by warrant officers and senior ratings (i.e. Chief Petty Officers and Petty Officers.), it is similar to that worn by commissioned officers and is worn with the same cap, trousers and shoes, but the tunic has only four buttons down the front, substantive rate badges, and no shoulderboards. When armed with rifle, this is worn with anklets and white web belt and black boots. This is only worn on extremely formal occasions, usually by guards of honour, at the order of command. Warrant officers first class wear the appropriate sword and sword belt as well.