The Men's SATORO AR Bottom baselayer delivers wool performance with enhanced durability. The midweight Merino wool baselayer bottom is designed for prolonged all-round backcountry use and leverages the advanced fabric technology of Nucliex STR 180 wool. Each Nucliex yarn is created by wrapping Merino fibres around a nylon filament to combine the natural comfort, efficiency and odour resistance of wool with the durability of the nylon core. Elastane fibres maintain the next-to-skin fit for maximum thermal efficiency and efficient moisture transfer.