The SA80 bayonet has a large number of frogs available for different purposes. Alongside those for use in combat are specialist patterns for the parade ground. Black artificial leather ones are issued to The Rifles, but the most common type is a woven white nylon design:The Army’s dress regulations explain:
Except in the very few units that wear black accoutrements, the waist belts, bayonet frogs, sword slings and shoulder belts etc. worn by the soldiers in Full Dress are invariably white, and this applies also in No. 1 Dress.
The frog has a plastic former inside to help it keep its shape and a piece of brass protects the throat as the bayonet is inserted and withdrawn:A belt loop is sewn into the top of the frog to allow it to be carried:A pair of brass rivets help reinforce this and prevent the weight of the bayonet from splitting the stitching:The bayonet fits into the frog neatly, with just the handle visible:For parades these frogs are cleaned and polished until they are sparkling. Brasso is used on the protector and rivets to make them shine and a white liquid cleaner is provided, much like emulsion paint, that is used to ensure they are sparkling and white. They are worn with a white woven nylon belt and can be seen with both the bayonet carried in them, or empty if a regiment has the freedom of a city to march with fixed bayonets through the street.