Note: To ensure proper assembly, please follow all steps provided in the installation manual (provided in pdf below) Ergonomic Backrest The high back of this office chair is made of high elastic mesh fabric with PU edging. A non-removable padded lumbar pillow is added to provide more comfortable support for your back and lumbar. The breathable mesh helps dissipate heat and keep you cool even in hot days. Padded Seat & Armrest The chair seat cushion is filled with high resilience shaping foam that feels soft but supportive. The seat is also enlarged and thickened to upgrade your sitting experience. Full padding on the armrests will better support and relax your arms. Tilting Function for Relaxing The backrest of our high back chair can be locked at 3 different angles for your working, rest or napping. Push the lever in, you will be able to rock the backrest back and forth, and youll enjoy the rocking mode to relax your legs and whole body. Flexible Adjustments Adjus