A tabard is a type of short coat that was commonly worn by men during the late Middle Ages and early modern period in Europe. Generally worn outdoors, the coat was either sleeveless or had short sleeves or shoulder pieces. In its more developed form it was open at the sides, and it could be worn with or without a belt. Though most were ordinary garments, often work clothes, tabards might be emblazoned on the front and back with a coat of arms (livery), and in this form they survive as the distinctive garment of officers of arms. In modern British usage, the term has been revived for what is known in American English as a cobbler apron: a lightweight open-sided upper overgarment, of similar design to its medieval and heraldic counterpart, worn in particular by workers in the catering, cleaning and healthcare industries as protective clothing, or outdoors by those requiring high-visibility clothing. Tabards may also be worn by percussionists in marching bands in order to protect their uniforms from the straps and rigging used to support the instruments. A tabard (from the French tabarde) was originally a humble outer garment of tunic form, generally without sleeves, worn by peasants, monks and foot-soldiers. In this sense, the earliest citation recorded in the Oxford English Dictionary dates from c.1300. By the second half of the 15th century, tabards, now open at the sides and so usually belted, were also being worn by knights in military contexts over their armour, and were usually emblazoned with their arms (though sometimes worn plain). The Oxford English Dictionary first records this use of the word in English in 1450. Tabards were apparently distinguished from surcoats by being open-sided, and by being shorter. In its later form, a tabard normally comprised four textile panels – two large panels hanging down the wearer's front and back, and two smaller panels hanging over his arms as shoulder-pieces or open "sleeves" – each emblazoned with the same coat of arms.