Ergonomic Office Chair High Back Desk Chair with Integrated Ergonomic Backrest with 3D Headrest 6D Flip-up Armrest 135°Tilting Retractable Footrest Mesh Computer Chair [["ULTRA-WIDE Ergonomic Backrest "," This chair features an ergonomically designed integrated backrest. The lumbar support and backrest fully conform to the curve of the human waist and back, providing unlimited comfort for prolonged sitting. A very comfortable lumbar support that is integrated with the backrest can provide good and stable support for your waist and back during work and study. The fatigue and discomfort caused by prolonged sitting can be effectively alleviated."],["6D Adjustable Flip-Up Armrest","The adjustable armrests on this chair make it easy to meet your different needs. The armrests that can be flipped 90° help you easily store the chair and also enable you to enjoy more comfortable sitting posture during use. You can adjust the armrests to any position within the 90-degree space to achieve greater comfort. You can easily adjust the armrests up-down and back-forth in different occasions. Also the armrests can be fine-tuned up to 30°to either side. "],["3D Adjustable Comfy Headrest","The width and height of the headrest are 13.8\" and 6.3\", much larger than other office chairs'. lt has an adjustable height range of 2.36\". The 3D headrest has also design of flexible adjustment for optimal neck support, 90°fit rotation and 60°height rotation allowing for adjusting to your best position, promoting good posture for cervical spine health. The headrest is made of skin friendly flocked mesh fabric, soft to the touch and breathable."],["136° Tilting 4-Level Lockable "," This office chair features a 136° recline angle with 4-level recline lock, allowing you to choose the perfect angle for relaxation or focus. Plus, this chair could automatically adjust the tension of the tilt according to your weight to match your personal comfort preference, ensuring every moment spent in the chair is both supportive and relaxing."]] mainColor : Black mainMaterial : Nylon