Caldwell Passive 33 NRR Hearing Protection Muffs with Lightweight Design and Adjustable Earmuffs for Shooting, Hunting and Range COMFORTABLE: Padded headband and cushioned ear cups allows for a snug fit to ensure proper noise cancellation and protection HEARING PROTECTION: 33 NRR (Noise Reduction Rating) with foam filling for extra protection CONVENIENT: The ultra-lightweight design is impact resistant and folds compact for transport EASE OF USE: Easy to fit with adjustable ear cups and easy to move side adjustment