This lightweight thermal top is naturally warm, soft, and breathable. Its versatility means you can layer it for breathability and warmth under just about anything. Its 100% merino wool content means you can wear it more between washes. Merino wool is one of nature's finest fibres. It offers natural temperature regulation and odour resistance. A versatile thermal made from lightweight merino wool for natural warmth and easy layering. Perfect for travel and casual wear.