Adjustability in product design primarily refers to:

Adjustability in product design focuses on the ability of a product to be altered in dimensions or size to better fit the needs of different users or contexts. This aspect is crucial in many design fields, particularly in areas such as furniture, clothing, and ergonomic tools, where users vary widely in body types, preferences, and use scenarios.

For instance, an adjustable office chair allows users to modify the height and backrest position according to their personal comfort, promoting better posture and reducing strain during long hours of use. This adaptability not only enhances user comfort but also broadens the potential user base for the product.

While customization options such as color or aesthetic variations might enhance personal expression, they do not directly address the functional adaptability of a product in terms of size or fit. Similarly, although a product can offer various functions, this does not inherently relate to adjustability in size or configuration.