Founded over 40 years ago, Terramar thermal underwear quickly became a world leader in pioneering products that combine natural textiles with the highest performing technological materials available. Today, they produce one of the most uniquely engineered thermal layering systems available. Their goal is to create clothing that functions as both gear and garment. Terramar is a strong believer in active outdoor experiences, and creates thermal underwear based on the needs of hikers, skiers, climbers, campers, and more. Whatever takes you outdoors, Terramar will ensure that you're warm and comfortable.