The merino wool material was chosen for its natural properties known for their softness and breathability. It ensures that your baby's sensitive skin remains protected from irritation while keeping their head snug and comfortable. Merino wool is also known for its thermoregulatory properties, making the hat suitable for both cold and warmer temperatures. This merino wool baby bow hat is not only functional, but also easy to maintain. It can be washed by hand or machine, on a gentle cycle, so you can always keep it clean and fresh.