Velvet bag is also called drawstring jewelry bag and jewelry bag. This is a container made of flannel material. However, any bagged container made of flannel material is called flannel bag, which is a kind of cloth container for holding articles and an environmental protection bag. Knitted flocking fabric is soft, moisture-absorbing, breathable, sweat-wicking, warm, excellent in elasticity and extensibility, smooth to the touch, colorful, bold and bright, and full of suede. Knitted flocking cloth is mostly used in flannel bags, packaging boxes, jewelry boxes, glasses boxes, watch boxes, display racks, gift boxes, automobile interiors and so on. In fact, many flannel fabrics are suitable for jewelry bags, jewelry bags and mobile phone bags, such as rayon flocking cloth, mesh flocking cloth and double-sided velvet, but knitted fabrics are the first choice for jewelry bags because of their unique elasticity, better protection function and moderate price.