"One size fits all" or "one size" clothing is a type of clothing that is designed to fit a variety of body shapes and sizes. This is achieved through several design and material choices:
One-size clothing is often designed to be over-sized so can be a good fit for many women and for those of a much smaller size stylised using a belt and accessories.
Loose or flowy designs
Many one-size garments are designed with a loose, flowy, or oversized fit in mind. These types of designs can accommodate a wider range of body sizes and shapes. Examples include tunics, kaftans, ponchos, or oversized shirts and sweaters.
Strategic cut and construction
The cut of the clothing can also play a role in how well it fits various body shapes. For instance, clothing items that have a bias cut (cut diagonally across the grain of the fabric) tend to drape well on different body shapes. Similarly, certain construction techniques like smocking or shirring can allow a garment to stretch and conform to the body.
It's important to note, however, that while one-size clothing can accommodate a range of sizes, it may not fit everyone perfectly. The fit can vary depending on the individual's body shape and size, and some people may find that one-size clothing is too loose or too tight. Therefore, it's always a good idea to check the specific measurements of a garment and compare it to your own measurements before purchasing.