Men's Merino Midlayer Shell: 65% Merino Wool, 35% Polypropylene LIFA® MERINO 2-layer construction 100% Merino wool exterior Flat lock seams for ideal comfort and durability Non-itch fabric ZQ wool The versatile LIFA; Merino Midweight delivers wicking and warmth in any type of cold-weather activity. Our unique LIFA; technical fabric transfers moisture away from your skin, keeping you dry and comfortable. The 100% merino wool enhances the LIFA; with its natural warmth and breathability. Helly Hansen Men's Lifa Merino Midlayer