This heavier, soft, 100% Merino baselayer wool fabric offers breathable warmth, moves sweat away from the body, and provides next-to-skin comfort in colder conditions.  One step higher in insulating strength than the much-loved Merino 200, this bulk-free, 100% Merino wool thermal layer brings a new dimension to active winter wear.  With seamlessly integrated insulation and ventilation, perfectly articulated flex zones, and Merino comfort, it’ll be the first thing you grab when you need a warmer layer for your high-intensity, cold-weather adventures.