The textile industry is one of the largest in the world and employs millions of people. Textile materials are made from fiber, yarns, and fabrics. Textiles can be found in a variety of materials, ranging from the clothes in your closet to the air filters in your vacuum cleaner. While the textile industry's focus was originally on the end product, countries have started to focus on the science and technology aspect of textiles. The ability of a country to create new machines and technology gives its manufacturers an even larger share of this market, which, in turn, results in greater profits. Smart functional clothing technology is a relatively novel and emerging area of interdisciplinary research within the fashion, textile, electronics and related industries. It is a unique and essential reference source for researchers, designers and engineers developing textiles and clothing products in this cross-disciplinary area. It is also beneficial for those in the healthcare industry and academics researching textiles, fashion and design.