'Grey Back' Shirt
The standard shirt for the British army since Queen Victoria's reign was made of wool flannel and was blue-grey in colour. It featured a buttoned half front and was collarless, being finished with a strip of cotton so as not to irritate the soldier's neck. It was roughly knee length with a bib of wool flannel on the front which came to a point at a strip of white cotton. This was intended for the soldier to put his number on (although this never seems to have happened). Good reproduction shirts, like the one shown, can be bought cheaply from a number of sources.