Breathe new life into your Bose Aviation Headset X with these low-cost, custom-designed replacement ear cushions. Fabricated from the same breathable protein leather as the stock ear pads, these specially formulated foam cushions provide both reliable comfort and a snug seal for maximum noise suppression. Replacement is extremely easy and requires no glue. Recommended after 350 hours of flight time or every 6 months. A low-cost, high-quality solution for restoring your Aviation Headset X to good-as-new status.