Yetee 100% Merion Multifunctional headwear fabric is the ultimate in performance sportswear. It out performs every other like minded fabric currently available. Merino's outstanding attributes mean the fabric can regulate your body temperature in all weather conditions. Being the most breathable fabric in the world, it draws sweat away from your skin keeping you dry. A phenomenon know as wicking. Naturally silky smooth it will be the most comfortable performance fabric you will ever wear next to your skin. Added to all that Yetee 100% Merino headwear is naturally anti-bacterial and odor resistant.