The Lifa Merino Midweight Crew Top from Helly Hansen is a unique 2-in-1 merino wool base layer with performance technology in a 2-layer construction that's perfect for any type of cold-weather activity. This layering piece delivers all the great benefits of merino wool fibres in addition to the unique properties of technical Lifa fibres. Ideal for skiing, camping, mountaineering and more, it's no wonder Helly Hansen remain the trusted name for base layers.