<p>In this study, polyester fabrics having temperature and water/moisture responsive dynamic recovery function have beenprepared with a nanocomposite finishing treatment composed of shape memory polyurethane (SMPU) and cellulosenanowhiskers (CNWs). The effect of CNW concentration (5-20 wt%) within SMPU-CNW nanocomposite on baggingrecovery has been investigated by a test procedure, including relative humidity (RH), air, and water media at differenttemperatures simulating laundry and drying processes. Characterization of fabrics is conducted by FTIR, SEM and DMAstudies. FTIR and SEM analyses results confirm the existence of SMPU-CNW nanocomposite on fabric. SMPU-CNWtreatment significantly increases the weight and bursting strength of the fabrics, as expected. Most notably, SMPU-CNWnanocomposites enable a dynamic bagging recovery of up to 100% above Tg of SMPU in water. Results give implications ofan active polyester fabric production possibility having dual responsiveness to both body physiological and environmentalchanges besides acceptable hand and strength.<br></p>