PELTOR HYGIENE KIT HY21 FOR SPORTAC - SKU: HY21 The 3M Peltor Hygiene Kit HY21 keeps your 3M Peltor SportTac Headset looking its best. This kit includes new cup cushions to ensure a tight seal for optimum protection as well as new foam inserts for the best sound quality. Features & Benefits: Extends the life of earmuffs/headsets Ensures good function and hygiene Avoid wearing uncomfortable earmuffs