Viking Mestis Life Style Hat, Pink 210-27-3887-4000. The Viking hat is perfect for both hiking and everyday wear on cold days. This hat provides comfort, warmth, and protection in a variety of conditions. Flexible beanie style. Bamboo viscose is soft, breathable, and has antibacterial and antifungal properties. Bamboo fibers are highly absorbent and quickly wick away moisture. Thermoregulatory properties. Technical data: Material: 100% bamboo viscose Size: One size fits all