Comfortable Like a Sofa:The double layer thicken seat cushion is highly comfortable and durable.The wide cushion provide you with ultimate comfort. You can have various sitting positions on it.It cant collapse sitting for long and makes you comfortable all day.And it has excellent breathability and aging resistance for long service life.Seat Size:20' x 20' (W x D). Ergonomic Comfort & Quality MeshDesigned with ergonomic adjustable headrest and lumbar support.You will feel comfortable back support sitting on the chair,It maintains the ergonomic posture of your spine.You feel no more sore and pain in your neck and lower back from long time gaming or working.The new upgraded mesh featured more subtles holes is softer,more durable,supportive,breathable,wear & tear resistant, makes your back more comfortable all day. Multiple Adjustments2.