The Highlands Pant is designed to provide full waterproof protection and insulation for the coldest days without sacrificing breathability. It’s one of the first pants made from a unique combination of Polartec® NeoShell®, the most breathable waterproof fabric on the market, and 80g Polartec® Alpha®, the first-ever breathable puffy insulation. It’s designed to provide full waterproof protection and insulation for the coldest days without sacrificing breathability, for active warmth. Polartec® Alpha® was originally developed for U.S. Special Operations Forces and is now available through Strafe. Unlike down or classic synthetic fill, which require the use of “closed” fabrics, Polartec® Alpha® is a highly stable insulation that won’t poke through or migrate. This allows for the creation of an air permeable puffy insulation package that’s not a vapor barrier, rather one that breathes with you for active warmth. We’ve found this combination of Polartec® NeoShell® and Polartec® Alpha® to be more comfortable throughout a wider range of cold weather conditions.