The ceremonial uniform of the Household Cavalry has two features that are not often seen on other soldiers. They wear a shiny Silver helmet With Brass and Silver fittings, with a long "plume" of horse hair hanging from the top. When on "mounted guard" duty they also wear a "cuirasse" (metal chest armour). The two regiments can be told apart by the colour of their jacket (which is called a "tunic") and by the "plumes" on their helmets. The Life Guards wear red tunics with white plumes while The Blues and Royals wear blue tunics and have red plumes to their helmets. While on guard, the soldiers carry swords. When mounted on horses, the soldiers wear white riding-breeches, known as buckskins, and tall black winged leather boots, which are called jack boots, having been "jacked" or reinforced against sword blows (Fr. Jaque: chainmail). 