The energy demand for cooling has nearly doubled in the last twenty years, namely the worldwide energy request went from 3.6 EJ in the years 2000 to 7 EJ in 2019 and recent studies reveal that if the efficiency in cooling technologies will not increase, then in the next twenty years the energy request will more than double due to the higher human activity. Personal thermal management aims to control the local temperature of the body providing a sustainable cooling effect that can potentially save both energy and money. This work presents a numerical and experimental characterization of both mass and heat transfer through smart polyethylene fabrics that exploit the simple structure of PE to guarantee both high transparency in the infrared region to enhance radiative heat transfer with the environment and visible opacity.