XS

XS is commonly used to denote extra small, a clothing size category essential to apparel, footwear, and accessories. It represents the smallest standard size in many brands’ lines and is often paired with other sizes in a linear sequence such as XS, S, M, L, and beyond.

However, XS sizing is not standardized. Measurements for chest, waist, and hips vary by brand and region, and both men’s and women’s lines may differ in their interpretation of XS. In some markets, XS may be omitted or replaced by other labels, such as a numerical or alphabetic system. As a result, consumers typically consult brand-specific size charts rather than relying on a universal standard.

Beyond apparel, XS appears in product naming to indicate a variant or generation. In consumer electronics and other goods, suffixes like XS are used to distinguish a smaller or differently equipped model, as seen in smartphones and other devices. The exact meaning of the XS suffix is not official and depends on the manufacturer, rather than reflecting a global or standardized measurement.

Origins and usage: The term XS comes from the phrase extra small and has become a widely adopted shorthand in fashion and consumer products to signal the smallest size within a given collection. Its usage in product names highlights branding or design distinctions rather than a single, universal meaning.