... 3)Replaceable sweatband 4) meet standard CE EN397 Safety helmet: Specification:1)PE shell2)4-point plastic suspension harness3) ... Strip-ratchet headband adjustment4)Replaceable sweatband Features:1)Eastnova helmet with fine workmanship, durable, comfortable, safe and reliable.2) ... Earmuff can be mounted on the helmet together, 3) Can print all kinds of paterns, signs ...