Wikipedia
Double cloth or double weave (also doublecloth, double-cloth, doubleweave) is a kind of woven textile in which two or more sets of warps and one or more sets of weft or filling yarns are interconnected to form a two-layered cloth. The movement of threads between the layers allows complex patterns and surface textures to be created.
In contemporary textile manufacturing, the term "double cloth" or "true double cloth" is sometimes restricted to fabrics with two warps and three wefts, made up as two distinct fabrics lightly connected by the third or binding weft, but this distinction is not always made, and double-woven fabrics in which two warps and two wefts interlace to form geometric patterns are also called double cloths.
Double-faced fabrics are a form of double cloth made of one warp and two sets of wefts, or (less often) two warps and one weft. These fabrics have two right sides or faces and no wrong side, and include most blankets, satin ribbons, and interlinings.
Double weaving is an ancient technique. Surviving examples from the Paracas culture of Peru have been dated to before AD 700.
Modern applications of double cloth include haute couture coats, blankets, furnishing fabrics, and some brocades.