ELASTIC, BREATHABLE FABRIC SEAT: The office chair is covered by the breathable and durable mesh fabric providing good air circulation and temperature regulation, padded with high-density sponge and built in with individual pocket springs providing ample support and high resilience contouring to your body, so that you can have a refreshing, comfy sitting experience without feeling stuffy in the hot summer ERGONOMIC DESIGN: The computer chair is ergonomically designed for all body types, with the adjustable head and lumbar cushions as well as the high back mimicking the curvature of the human spine, the 360° swivel height-adjustable wide-padded seat, the backrest reclining within 90°-145° and the linked armrests moving with it to support your arms and elbows at all times, the retractable footrest easy for switching between napping and gaming MASSAGING LUMBAR SUPPORT: This gaming chair from WOLTU features a massage lumbar pillow, a head cushion and a wide padded seat without side wings