With these measurements:

Waist (26-40 inches): Adjustable or elastic, fits Small to XL.

Hip (30-44 inches): Fits Small to XL.

Length (37 inches): Full length, likely standard for pants or skirts.

This item is very versatile due to its wide adjustable range. It can be recommended as One Size Fits Most (Small to XL) or Free Size, depending on the style (elastic or adjustable waist). Its suitable for anyone within these measurements.