hook and loop fastener

thumb|A shoe using hook-and-loop closures

Hook-and-loop fasteners, commonly known as Velcro (a trademarked term that the manufacturer renders in all-capital letters as VELCRO), hook-and-pile fasteners or touch fasteners are versatile fastening devices that allow two surfaces to be repeatedly attached and detached with ease. Invented in the mid-20th century, they are widely used in clothing, accessories, and various industrial and consumer applications. The fastener consists of two complementary components: one with tiny hooks and the other with soft loops. When pressed together, the hooks catch the loops, creating a secure but temporary bond. The fasteners can be separated by peeling or pulling the surfaces apart, often producing a distinctive ripping sound.