Buff Heavyweight Merino Wool Hat 100% Merino Wool Imported The Buff Headwear Merino Wool Thermal Beanie delivers a relaxed, contemporay look while providing beautiful striking solid colors. Weighs only 2.1 ounce but is the thermal protection ranges for this Buff Hat are 31F to 41F One Size fits most adults The Buff Headwear Merino Wool Thermal Beanie is an extremely versatile beanie can be used for hiking, trekking, long walks in your favorite urban city or sitting near a warm fireplace in the cold of winter. If you do not see a Buff logo, then it is not an Official Buff product. Beware of imitations!