Performance 2-in-1 base layer pants with a warm and breathable 100% merino wool exterior and a 100% LIFA wicking interior. LIFA: LIFA is the original Helly Hansen base layer made of 100% LIFA fibers, providing warmth and insulation in cold weather. LIFA naturally pulls moisture away from skin and to the outer layer of the garment keeping you warm, dry and comfortable. FEATURES: 2-layer construction, 100% Merino Wool exterior, 225g LIFA Merino fabric, Non-itch, Flat lock seams GOOD FOR: Camping & Hiking, Climbing & Mountaineering, Trekking, Resort, On Piste, Alpine, Winter, Skiing FIT: Fitted - Slim fit to body. Fitted technical garments may be worn over baselayers and light midlayers. Pants are slimmer through the thigh and knee and won't go much below the ankle when standing up straight. Our LIFA Merino Midweight Pants keep you warm and dry during any type of cold weather activity, so you can get outside and stay outside longer. We combined a 100% merino wool layer with our proven LIFA fiber technology in a 2-layer construction. LIFA Merino MIDWEIGHT delivers all the breathable warmth of merino fibers, plus the unique moisture management properties of LIFA fibers. These base layer pants come in cool prints and are fitted for optimal mobility without bulk.