Abstract: A process for treatment of polyester fabrics imparts improved characteristics to the fabric, including improved moisture wicking, soil-release, and soil-redeposition properties, and less static cling. The process comprises treatment of the fabric with a caustic solution, preferably in the presence of an appropriate catalyst, followed by the application of a polyester copolymer, the copolymer having both hydrophobic and hydrophilic groups. The process treats the entire fabric, not just the surface, and provides a product sufficiently comfortable to be used for intimate apparel and active sportswear.