Select the finest merino wool, soft and close to the skin without itching, naturally absorbent and sweat-wicking, antibacterial and odor-, breathable in hot weather, and temperature-locking in cold weather, suitable for all seasons. The half-zippered stand-up collar can be freely for comfort, ergonomically cut to fit without being too tight, and suitable for sports and commuting without restraint. It can be worn as an inner layer or alone, made of renewable fibers, eco-friendly and practical, and is a versatile item that is essential for the wardrobe.