Peltor H10P3e, Optime 105 Hard Hat attached Hearing Protector, EA Viking long sleeve t shirt Made of a custom polyurethane Size:2X Large (48" 50") Made of a custom polyurethane formulation for slow recovery and increased softness in the ear canal flour mills and grain seed clearing plants ¥ federal public service and persons employed by the public service and Crown corporations and agencies ¥ indian reserves ¥ exploration and development of petroleum on lands subject to federal jurisdiction Unitized The OPTIME 105 features added mass and volume plus a unique double shell ear cup design (two cups connected via a foam inner layer to reduce structural resonances) to provide the maximum in noise reduction throughout the full range of low and high frequencies