"UK Size" refers to the system of clothing and shoe sizes used in the United Kingdom. This sizing system is distinct from those used in other countries, such as the US or EU. For clothing, sizes typically range from small (S) to extra-large (XL), with numerical sizes for specific measurements. In footwear, UK sizes are usually one size smaller than US sizes. For example, a UK size 6 corresponds to a US size 7. Understanding UK sizes is essential for shopping, especially when purchasing items online or from international retailers.