This self heating hat employ a knitting technique known as plaiting, in which the finest extra fine merino wool yarn is always on the outside and our FIBREHEAT™ patent pending technology is always on the inside. Our technology incorporates several hi-tech fibers that each perform a different function, from energy harvesting to heat generation and heat retention. The result is a great looking hat that keeps your head warm. Don't lose heat through your head, put a cap on it!
Care Instructions: Dry Clean Only
Contents: 57% Extra Fine Merino Wool/17% Acrylic/14% Polyester/12% Nylon