elasticated

When something is elasticated, elastic has been added to it so it can stretch and then pull back into shape. You usually see this word with clothing and fabric. An elasticated waistband, cuff, or panel fits closely but still feels comfortable because it can move with the body. The word is most often used to describe how a garment has been made, not how it is moving at that moment.

Elasticated is an adjective used for clothing, fabric, or a part of a garment that has elastic put into it. The result is a section that can stretch, fit more neatly, and return to its shape after being pulled. It is especially common in descriptions of waistbands, cuffs, ankle openings, and fitted fabric panels.

For example, a pair of trousers may have an elasticated waist so it feels secure without needing a tight belt. A jacket sleeve may have elasticated cuffs to keep out wind and help the sleeve stay in place. In product descriptions, the word often suggests comfort, flexibility, and an easier fit.

The main idea is not simply that something is stretchy, but that elastic has been built into it as part of the design. Because of that, elasticated is more specific than words like "stretchy" or "flexible." It is mostly used in clothing, sewing, and retail language, where details of fit and construction matter.