A knitted watch cap made of wool material that has been carefully produced over time at Japan's number one factory specializing in knitted accessories. The yarn is a blend of fine merino wool from New Zealand and merino wool from Australia. The yarn has a strong crimp and a sense of swelling, so it looks beautiful and has a sense of volume. It is less prickly than regular wool and has a smooth texture, so even those with sensitive skin can wear it with confidence.Since the material is pre-shrunk, it can be washed at home. We recommend washing with a neutral detergent. It is a highly functional material that has natural antibacterial and deodorizing properties, so you can wear it without worrying about it even in seasons where you sweat a lot. Both New Zealand and Australian wool are non-mulling and traceable materials.