A model of the system, including a person and their clothes, was created to analyze the effects of incorporating IVTOF in clothing. It was determined that a transmittance of 34-43% in the IR spectrum is required to achieve sufficient cooling. Using polyethylene (PE), with a maximum yarn thickness of 100µm, the minimum spectrally integrated transmittance in the IR spectrum was 48.8%, which is greater than the required transmittance. The second requirement of a clothing fabric is opaqueness in the visible spectrum. Polyester and cotton cloths exhibited uniform reflectance of 40-50% in the visible spectrum and the PE sample exhibited 50-60%. Therefore, PE fabrics are one potential material for IVTOF. Fabrication of these materials consists of three steps; extrusion of molten polymer through a spinneret into a bundle of fibers, drawing of fibers, and spooling the fibers into a yarn. The spinneret is designed to include the total number of fibers in a yarn allowing equal production rate for fibers and yarns. Once the yarns are created, they can be woven into fabric with commercially available looms.