icebreaker has the world’s best merino wool layering system. Our wool 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 feel comfortable all day. Wear our base layers as wool thermals for warmth in even the most extreme cold, or under your winter clothes for cosy comfort. Merino thermals regulates your body temperature in both heat and cold, and is naturally odour-resistant, so you can stay smelling fresh after a long day in the mountains or a hard workout at the gym. Layer with our thermal tops and merino wool thermal trousers for cool-weather outdoor adventures or training, or with our shorts for autumn and spring hiking and cycling.