The adaptability and variety of hook and loop is perhaps most evident in its presence in the
military industry. A fairly simple concept, hook and loop fasteners consist of two pieces. The hook, meaning the rough side, and the loop, or softer side, which is often referred to as "pile" by the military. When the two sides are joined together, the hooks attach to the loops, forming a strong bond that is used to fasten apparel, organize supplies and bundle military equipment and tools. Its adaptability makes this fastener incredibly useful. This rifle stock cheek rest is adjustable with hook and loop.