EFFECTS AND ADVANTAGES: Prevents cranial bruising. COMPOSITION: padded neoprene coated fabric. It has mentoniano harness and adaptable closure. Polypropylene bies, velcro and buckles closure. DIMENSIONS: adjustable MAINTENANCE: Wash by hand or machine with non-abrasive products. Maximum temperature 30 ° C. Do not dry clean. Do not bleach. Do not iron. Can not tumble dry.