Upgrade the comfort of your Herman Miller Aeron Classic chair with our New and Improved Under Seat Foam Insert. Designed for Aeron: Specifically designed to fit Herman Miller Aeron Classic Size B models with precision. Improved Material: Crafted from high-quality polyurethane foam, the same material used in our arm pads, for long-lasting performance. Added Comfort: Adds extra padding under the front edge of your Aeron seat, improving overall comfort and support. Quick Installation: Easily installs without tools, restoring your chair’s comfort to like-new condition. Warranty: Backed by a 2-year warranty for added peace of mind. Made in USA 🇺🇸: Proudly designed, tooled, and produced in Michigan.