Krest 26 Muffs are Birchwood Casey's most powerful, passive noise reduction muffs. Featuring comfortable, padded ear cups and a padded, fold away headband, these muffs are as comfortable as they are effective at reducing the harmful effects of muzzle blast. It includes a set of foam ear plugs. When earplugs are used in conjunction with the, the combo provides an NRR of 36dB.