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When the Northern winds blow, you don't want just any hat on your head. The REI Wool Aviator hat will keep you warm and have you standing out in a crowd. Wool/polyester exterior combines with tweed earflaps for a stylish look. Polyester satin lining has a soft feel, and it enhances warmth and wicks moisture away from your brow. Chin and earflaps are lined with silky soft faux fur for next-to-skin comfort. REI Wool Aviator hat features polyester-insulated earflaps that offer protection from harsh winds; secure flaps around your chin or atop your head.