Waders refers to a waterproof boot extending from the foot to the chest, traditionally made from vulcanised rubber, but available in more modern PVC, neoprene and Gore-Tex variants. Waders are generally distinguished from counterpart waterproof boots by shaft height; the hip boot extending to the thigh and the Wellington boot to the knee. They are therefore sometimes referred to as Chest Waders for emphasis. Waders are available with boots attached or can have attached stocking feet (usually made of the wader material), to wear inside boots. Waders have a wide range of applications. Regarding leisure purposes, they are worn while angling, water gardening, playing with model boats, waterfowl hunting, and off-road riding of All-terrain vehicles. Industrially, heavy-duty waders are used by predominantly in the chemical industry, agriculture and in the maintenance of water supply, sewerage and other utilities.