Service dress tunic, other ranks, The Prince of Wales's Own (West Yorkshire Regiment), 1901 (c)

Khaki drill tunic.

Although khaki was worn by certain units from the mid-1840s, the dyes used were fugitive. In 1884 a permanent mineral khaki dye was patented by Frederick Albert Gatty. Troops on active service in Egypt, India and parts of Africa were allowed a khaki drill suit and in 1896 it was introduced for wear at all stations abroad. Having proved insufficiently warm for temperate climates, a similar uniform made of khaki serge was sealed in April 1900.