PU head guard CE Immersion-coated, lightweight foam material (approx. 20 mm), making it sweatproof and able to retain its elasticity. Shaped recess to prevent unpleasant pressure on ears. Large cross-shaped opening in ear cover ensu- res hearing is not implaired. Velcro fasteners on sides on elasticated chin strap. harmful substances tested Red and blue head guard officially WTF rec.