"US size" typically refers to the sizing system used in the United States for clothing, shoes, and other products. This system varies from international sizing standards, which can lead to confusion when shopping. For example, a size 8 in the US may not correspond to the same size in Europe or Asia. In the US, clothing sizes are often categorized as small, medium, large, and extra-large, along with numerical sizes for women's and men's clothing. Shoe sizes also follow a different scale, with men's and women's sizes being distinct. Understanding these differences is essential for accurate fitting and purchasing.