A good aviation headset is a lot like a fine wine. As such, you'll want to make every effort to ensure your headphones will still be going strong years down the road. Fortunately, our Lightspeed Sierra Hygiene Kit makes extending your Sierra's lifespan a painless, easily affordable process. Inside the kit, you'll find a brand-new mic muff, a padded head pad, and a pair of comfy ear seals - all of which are identical to the original components. Just remove the worn parts, replace with the kit's contents, and experience that familiar, new-headset feel. A superb collection every Sierra user is sure to love.