The pure merino wool of the Boshi No. 3 emphasizes particularly high quality. By using this high-quality yarn, you get a pure wool hat that is especially warm and soft, yet still breathable. It also meets one of the most important criteria for wool – it doesn't itch. Merino wool has proven itself as the only natural material and renewable resource in the outdoor sector. It is lightweight and elastic, durable, and due to its properties, it does not provide a breeding ground for bacteria, making it germ-free and odor-neutral even after prolonged wear.