This provides substance to its quality and performance positioning and sets it apart from most price-driven, value retailers. One of their signature innovations is HeatTech, a fabric developed in conjunction with a material science firm that turns moisture into heat and has air pockets in the fabric to retain that heat. - See more at: https://www.prophet.com/theinspiratory/2014/10/21/6-reasons-why-uniqlo-is-winning/#sthash.NxMx5pMW.dpuf