The first layer against your skin is your most important layer. Red Rock thermal underwear are made of 100% high quality polypropylene and feature some of the most innovative features ever to be found in thermal long underwear. Designed of heavy expedition polypropylene, Red Rock thermal wear is comfortable enough to wear under any clothing to provide you with the warmth and comfort you demand when it matters most. Whether preparing for a harsh day in the cold or just relaxing at the ski lodge, Red Rock Thermals are up to the challenge. Wear your Red Rock Thermals directly on the skin on winter's coldest days for maximum vapor transport, comfort, and warmth. When the weather is moderate, Red Rock Thermals can be worn as a midlayer or outerlayer for both warmth and style.
   Red Rock Polypropylene Thermals are the perfect compliment for the active outdoorsman who works and plays in the elements of nature. Founded on the belief that quality and comfort should be forthmost, Red Rock thermal underwear continue to outperform even after extensive use in nature's harshest elements. At Red Rock Thermals, we know they work because we live this life.