Waders

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.

The first manufactured waders were made as early as the 1850s by a company called Hodgman. When rubber became popular around 1912, they started making the waders out of this particularly waterproof and durable material. Then rubber was more or less perfected in 1942 for World War II, so they used the same technology to make waders that are closer to what we have today.

There are two main types of waders: stocking-foot and boot-foot. Stocking-foot is separate from the boot and connects to it, while boot-foot includes the boot already.

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. Waders are frequently worn by pastors during full immersion baptism and have an important application during flooding, while walking along the streets or indoor.

...
Wikipedia