Ergonomic Back Support: Breathable mesh，adjustable headrest and firm lumbar support form an S-shaped structure. This ergonomic chair supporting your back while allowing air flow to keep you cool. So you can stretch and move, striking a healthy balance between freedom and support. Thickened Soft Seat Cushion: Our office chair using a high-density thick padded sponge seat cushion and skin-friendly mesh cloth. No matter how long you’ll sit on it or what you'll be doing. Our chair gives you instant comfort, anywhere you work. Multipurpose Chair: East oak task chair – with 360°swivel, 120° tilt tension，2.4in height adjustable headrest and 4in height adjustment – is made for instances that require a casual yet comfortable place to sit. Working at a desk, gliding over to meet with a colleague, reclining in thought. etc