WSI Sports has been known as the “Cold Weather Expert” for more than 27 years, providing USA made, performance base layers to numerous champion athletes and teams. For the Extreme Viking Race, we guarantee our HEATR® technology will give you the needed momentum needed to enhance your performance and finish the race strong. HEATR® is a unique, durable fiber that lines our cold weather gear and warms against the skin. Here are just a few of our unique HEATR® Items!
For more information about our unique line of HEATR® products, click here.