The Obermeyer Billings Classic Knit Hat is a fall staple for taking on your annual backpacking trip or just casually relaxing around a campfire. This beanie-style hat is made up of a blend of 5% Alpaca, 30% Wool, 30% Acrylic, and 5% Nylon to offer the most warmth in a small package. The rib-knit hem and cable knit body compasses a fully lined insulation, and provide that classic fall look.