The HOTHEADS brand balaclava are manufactured exclusively by MAXIT in the USA. These balaclavas were originally manufactured by MAXIT at the request of NFL equipment managers. They were originally designed to have a performance fit and to provide maximum warmth and comfort under football helmets. They are made using MAXIT exclusive ProMAX IV fabric and constructed with durable, flat seam stitching. This fabric is amazingly warm, yet thin. These balaclavas can be easily worn under any style of hat, hard hat, or helmet.