Buff Merino Wool Headband 100% Natural Merino Wool - A natural, lightweight fabric that helps to regulate body temperature for optimal comfort. Polygiene Treatment - Fabric remains cleaner for longer without releasing odours caused by bacteria. Moisture Management - Wicks sweat away from the body, keeping you comfortable and dry. Breathable - With humidity control, supplying you with air at altitude. 100% Seamless - Reduces irritation caused by chaffing.