The X Series earmuffs are 3M’s latest advancement in hearing conservation. New technologies in comfort, design and protection all come together in this groundbreaking earmuff line. The X1B is a lightweight, low-profile earmuff designed for protection against low-level industrial noise and other loud sounds.  - The wire headband offers consistent pressure over prolonged wearing periods - Earcup pivot points tilt for optimum comfort and efficiency - Replaceable ear cushions and foam liners (hygiene kit HYX1) - Noise Reduction Rating (NRR)b 22 dB. CSA Class A

• Design of neckband allows earmuffs to be worn with a variety of face shields and headgear
• Compatible with headgear without accessory slots
• Soft, adjustable head strap helps to maintain a secure fit with many different types of headgear
• Fit can be confirmed: Verify with 3M™ E-A-Rfit™ Dual-Ear Validation System***
• X1 Products are slim and lightweight: Comfortable for wearers, especially with other protective equipment