Satin is also soft and smooth like silk and can vary from light weight to heavy weight. Satin is a weave that typically has a glossy surface and a dull back. The satin weave is characterised by four or more fill or weft yarns floating over a warp yarn or vice versa, four warp yarns floating over a single weft yarn. Floats are missed interfacings, where the warp yarn lies on top of the weft in a warp-faced satin and where the weft yarn lies on top of the warp yarns in weft-faced satins Satin is popular for its glossy appearance and is created with a particular type of textile weave, during the process woven material it is run through hot cylinders. The weave method used to create it is different from a basic fabric, the latter is woven by having the threads in each direction (the warp and the weft) going one over and one under. The satin weave is four over and one under, with less interlacing of the threads. That process gives fabric its characteristic glossy look. The fibers that are commonly woven to create satin are silk, cotton, wool and also synthetic materials like polyester or acetate that allowed to have a less expensive fabric.