90° Flip-up Armrests: Want to scoot as closely as to the desk? Flip the arms up, and you’ll gain all the benefits of an armless desk chair. These benefits include having an unrestricted seating posture, saving floor space by storing the chair under the desk, and being able to use it with desks of various heights. Cushioned Seat & Mesh Backrest: The extra-large cushioned seat, measuring 20.5″ W and 20″ D, is elastic and not easy to deform, offering optimal support for a long period of sitting. Plus, the high mesh backrest wrapped with breathable mesh provides a cooler sitting experience and full back support. Sturdy Construction: This computer chair is made of a long-wearing polyester mesh backrest, a durable plywood frame, and a strong nylon base, offering a steady sitting experience. With a 300 lb weight capacity and a large sitting area, this desk chair is suitable for most individuals. Adjustable Comfort: The height-adjustable headrest of this mesh gaming chair allows you to find the most comfortable position for your neck and head while sitting upright or reclining. The lumbar support can also be adjusted to maintain proper spinal alignment and promote good posture. The adjustable range of the lumbar support is 2’’. Stable & Durable: With the SGS-certified gas lift, this home office desk chair is built in an impact and durable frame, ensuring our users sit steadily in it.