Premium Yak Wool Comfort Experience the extraordinary comfort of Tibetan yak wool-one of nature&';s most remarkable fibers. Our beanie combines premium materials with thoughtful design for comfort and all-day wear. Premium Comfort: Wide ribbed cuff for comfort Premium 53% yak / 44% wool / 3% nylon blend Why Yak Wool? Hypoallergenic and gentle on sensitive skin Naturally antimicrobial to fight odor Moisture-wicking keeps head dry Insulates without overheating Extra soft hand feel Sizing: One size fits most The United By Blue Difference: Every pair removes one pound of trash from oceans and waterways-so you can feel good while your head feels great. Sizing: One Size Fits Most The United By Blue Difference: Every pair removes one pound of trash from oceans and waterways-so you can feel good while your feet feel great. Available in both subtle solids and classic striped patterns. Perfect for daily wear, outdoor adventures, or anyone who demands more from their beanies.