The hat is knitted from merino wool. Inside is a merino wool lining. Merino wool products are perfect for people who find regular wool itchy. Merino wool also helps to regulate body temperature: keeps you warm in winter and cool in summer. Another good feature of meriino wool is its fluid absorption capability but not feeling wet against the skin. Maintenance: handwash! Material: 100% merino wool! Designed and made in Estonia.