icebreaker has the world’s best merino wool layering system. Our men’s base layers are made with superfine merino wool, sourced from our growers in New Zealand. Merino wool clothing is naturally breathable and wicks moisture from your skin, so you can stay feeling comfortable all day. Wear our base layers as thermals for warmth in even the most extreme cold, or under your winter clothes for cozy comfort. Merino regulates your body temperature in both heat and cold, and is naturally odor-resistant, so you can stay smelling fresh after a long day in the mountains or a hard workout at the gym. Pair with our men’s shorts to create a versatile layering system for spring and autumn hiking and cycling adventures.