The term 'diaper material' can be summarized by the crossword solution 'CLOTH, ' which is a five-letter word. CLOTH is a general term for a woven fabric made from natural or synthetic fibers. It is commonly used to make clothing, bedding, and other household items, as well as diapers. CLOTH diapers are often preferred over disposable diapers because they are reusable, more environmentally friendly, and generally less expensive.