The crossword solution for the term 'STRETCHY, QUITE POSSIBLY' is UNISIZE. The term unisize refers to clothing or other items that are designed to fit a wide range of sizes due to their stretchy material. This type of clothing is often used in mass-produced clothing lines, as it eliminates the need to produce multiple sizes of the same item. Unisize clothing is quite possibly the most versatile type of clothing available, as it can accommodate a wide range of body types and sizes.