Warm and cozy Pendleton Timberline hat will keep you warm regardless of what Mother Nature sends your way! Body is 100% Wool, the Ear Flaps are 100% Polyester. Flaps fold inside or you can tie them over the top of the cap when not needed. This hat has chin ties to keep the hat anchored on your head in the wind. The back of the hat is adjustable to fit securely.