You may have noticed some items marked as “one size” or with no sizes listed at all.
What one size means is that the item can be worn by a variety of sizes. This is because a one size is usually smocked or elastic and stretches to fit. Some dresses are made out of a rayon or spandex blend material and this will stretch also.
So will it fit?
Most one size tops will fit a range of about 2-3 sizes depending on the material and the amount of elasticity in the smock. Normally a regular one size item will fit sizes small, medium and sometimes large. A “plus size” version fits medium, large and extra-large.