The warmest merino in our lineup, the Merino Expedition Hood combines full-coverage protection with the natural performance of merino wool. Built with 230 GSM Nuyarn® merino wool and the proprietary ExoHinge™ adjustable face hinge, the Merino Expedition Hood delivers serious warmth and protection. Nuyarn® is a twist-free spinning technique that amplifies the natural performance of merino with natural odor resistance, faster drying, greater stretch, improved thermal retention, and increased durability. The result is a warmer, tougher merino balaclava built for summits, storm laps, and winter expeditions of any kind.