Nothing keeps you comfortable in cooler weather than a dependable mid layer. The Hiram Pullover is a 25% Wool/25% Acrylic/50% Polyester Blend providing all the positives and looks of wool without all the hassle. The bonded mesh lining keeps it feeling comfortable against the skin. Don;t worry, we still think about function with a zippered chest pocket and zippered sleeve stash pocket. Flat lock seams throughout reduce the bulk and increase comfort. A proud member of the hairy chest supplement program.