In addition to simplicity-of-use and ease-of-identification, the X Series sets a new standard in design, comfort and protection for over-the-ear protection. These dielectric X5 Earmuffs should be used in extremely high noise environments which often requires double protection - mining, quarrying, paper mills, gas turbines, etc. The X5 achieves exceptionally high performance, without resorting to double protection, such as earmuffs and plugs together. The unique attenuation is a result of the specially-formulated foam technology featured in the cups and sealing rings, combined with the spacer and cup design. Despite the larger ear cups, the product is lightweigHT™ balanced and comfortable. Earmuffs feature dual-molded ear cups with soft, wide cushions for enhanced comfort and wearability. Easy click in and click out allows users to easily move cups. Store conveniently with cups clicked in or out. A universal mounting attachment fits most hard hats.