I found a little bit about this study.

I can't quite tell if it is a sales pitch, (mentioning Adidas and all), but here's an interesting finding:

"Based on the Loughborough research, adidas applied moisture-wicking fabrics, conductive fibers consisting of silver-coated yarns and three dimensionally structured fabrics, to key heat and sweat zones. The moisture-wicking fabrics keep the athlete cool and dry, transporting sweat away from the skin. The conductive fibers, called X-Static, are located down the back of the shirt in a chimney construction to conduct heat, and conductive tape is applied along the inside of the neck of the shirt. This draws heat away from critical heat zones. The 3-D fabrics, located in key places on the garment, consist of hundreds of small indents on the body-side of the fabric. These indents sit off of the body, stopping the garment from clinging to the body, and maximizing ventilation across the skin."