N Ferno 6876 FR Winter Hard Hat Liner + FR Mouthpiece Kit 2 Layer Cold Weather Gloves Colors: Hi vis Orange or It also features a Colors: Hi vis Orange or Lime (Orange color not shown) High Fidelity Speakers HARD HAT LINER There are 4 hook & loop straps on the exterior of the liner designed to securely attach to the interior of a hard hat for versatile protection in extreme work environments Both the N Ferno 6882 FR Hard Hat Thermal Liner and N Ferno 6872 FR Thermal Mouthpiece have a fire resistant outer shell and lining made of 60% modacrylic cotton and 40% cotton twill blend to stand up to tough environments and meets requirements of performance specification ASTM F1506