Nappy leathers, also known as suedes, are a type of leather that has been treated to give it a soft, velvety texture. They are often used in the production of shoes, bags, and other accessories. The term 'NAPPY' refers to the nap or fuzzy surface of the leather, which is created by brushing the leather with a wire brush. Suedes are known for their durability and water-resistance, making them a popular choice for outdoor activities.