The Matrix Custom Back support features infinitely Adjustable Micro-Modular Seating that offers a range of benefits. The see-through design enables confirmation of appropriate back support. Unparalleled airflow through the back combats heat and moisture retention. Proprietary open-cell foam is soft and maintains appropriate positioning, breathability and pressure relief. The thin-profile, rigid outer shell allows easy attachment of mounting hardware and accessories. The Matrix Custom Back is coded E2617 and features lightweight, multi-axis quick-release hardware.