evo.com | Helly Hansen Long Underwear Tops > No winter kit is complete without a merino wool base layer, which rules the game when it comes to warmth and breathability. The Helly Hansen Lifa Merino Midweight Base Layer Hoodie is no exception. This 2-layer hooded long sleeve is light and breathable thanks to a 100% Merino wool exterior and moisture-wicking Lifa interior close to your body. Layer the hood under your helmet for built-in neck protection, and pull up the front when the lift line needs a mask. When the cold weather calls, choose Lifa. Snug High Performance Fit 330 g/m^2 57% Merino Wool Exterior / 43% LIFA(R) Polypropylene Interior LIFA(R) is the original Helly Hansen base layer, trusted by professionals around the world to provide warmth and insulation in cold weather. It is at its best when layered underneath another garment as it will push moisture away from skin and make sure you stay warm, dry and comfortable. Hood for Added Warmth Flatlock Seams for Comfort | Helly Hansen Lifa Midweight Baselayer Hoodie Men's 2027 - Large Black | Wool