Oleo-Mac ear defenders are lightweight and comfortable to wear. The shell is made of PVC with a plastic or stainless steel headband. These ear defenders are adjustable and guarantee noise attenuation and sound proofing thanks to their PVC and foam sound insulating material. The various models provide noise attenuation from 27 to 32 DB. The ear defenders are approved to CE EN 352-1, category 2 PPE.