3M PELTOR X4 Ear Muffs Replacement Cushions and Liners Designed Only for PELTOR X4 Series Over-the-Head Ear Muffs X4A or Hard Hat Attachment X4P3E,Black: Ear Protection Equipment Accessories: Amazon.com: Tools & Home
3M Peltor Optime Hearing Protection Earmuffs in the Hearing Protection department at Lowes.com
3M PELTOR ComTac V Hearing Defender Headset Green – First Source Wireless