Rubber boots are called boots that are made of a waterproof rubber or rubber-like material. Rubber boots are usually calf- to knee-high and waterproof. Rubber boots were already made in a simple way by the indigenous people of South America by soaking cloth in plant sap. The breakthrough for the rubber boot came in Europe with Charles Goodyear who invented the first classic boot made of rubber. His process made the rubber permanently plastic. Today, rubber boots are made in many different ways. For the most part, they are still produced by hand or at least only semi-automatically. Today, a wide variety of materials are used. Professional rubber boots are mostly made of polyvenyl chloride and polyurethane, also known as PVC or PU. These materials are very durable. Leisure boots, rubber boots for hobbies such as riding boots, fishing boots, trekking boots, hiking boots are often made of natural rubber or natural rubber blends. They are also very hard-wearing, but also need a little care.