Smartwool Men's Smartloft 120 Jacket Nylon/Merino/Polyester Size Large Excellent preowned condition with minimal signs of wear and no signs of damage How warm. Very Warm. The Men's Smartloft 120 Jacket uses 88% recycled wool insulated for lightweight, packable warmth and breathability even when wet. It also features a DWR-coated nylon shell for protection and a wool lining for sweat and odor management. It fits perfectly into any winter adventure. 22.5” pit to pit 27” shoulder to hem