This mid-weight, duo layer thermal long underwear, consists of a fully synthetic inside and Merino blend face. Our bi-layer construction, creates an air pocket in-between both layers for additional insulation and thermal regulation. The synthetic backside, helps to push sweat and moisture vapors to the surface to keep the wearer dry and comfortable. Merino wool, is natures best at thermal regulation and odor control. Our Merino wool is blended with nylon for an added degree of durability. Great on its own or with the Ultra Merino Crew or Ultra Merino Half Zip.
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In 1971 Terramar Sports was established with one goal in mind. To provide outdoor enthusiasts with products that offer the perfect combination of form, fit and function. We firmly believe the key to staying warm, dry and comfortable in all conditions and activities starts at the base layer. For over forty years Terramar has been dedicated to utilizing the finest natural and synthetic fibers, fabrics and technologies to deliver what the customer needs. From the inside out.