Pocket fluff, also known as LINT, is a collection of small fibers that accumulate in pockets, on clothing, and in other places. It is usually composed of tiny fibers from fabrics such as cotton, linen, and wool. LINT is created when these fabrics rub against each other and the fibers become loose. It can also be caused by static electricity. Pocket fluff is often considered to be an annoyance, but it can also be used for various purposes such as cleaning and arts and crafts.