The best base layer on the market uses a clever 2-layer construction to keep you dry and warm during any cold weather adventure. Our Lifa® technology wicks away moisture while merino wool creates breathable warmth. This midlayer features a 2-ply construction made from 100% merino wool on the outer layer, and flat seams for ideal comfort and durability. Box contents: 1 x Helly Hansen Women's W Lifa Merino Midlayer.