Fabric as the first and most common layer that is in permanent contact with human skin is a very good interface to provide coverage, as well as heat and cold insulation. Phase change materials (PCM) take advantage of latent heat that can be stored or released from a material over a narrow temperature range. These materials absorb energy during the heating process as phase change takes place and release energy to the environment in the phase change range during a reverse cooling process. Insulation effect reached by the PCM depends on temperature and time. Recently, the incorporation of PCM in textiles by different techniques has grown interest to the researcher. There are large numbers of organic and inorganic PCMs that possess a wide range of melting and solidifying temperature which attracts attention for their applications in different fields of textiles such as sportswear, household accessories, medical textiles, automotive textiles, space textiles etc.