Optime Type I earmuffs offer versatile protection and are extremely lightweight, providing excellent comfort features. Thanks to its excellent design, it combines well with other personal protective equipment while providing hearing protection. The Optime I is the ideal choice for both short and long term use. The wide, comfortable insulating ring is filled with a unique combination of liquid and foam, which means both optimum insulation and low pressure on the ear. Ideal for environments with moderate industrial noise, but also suitable for outdoor work or hobby and leisure activities.