KERDOM Office Chair, Ergonomic Office Chair with Adjustable Lumbar Support, Mid-back Swivel Executive Computer Chair with Flip-up Armrests, Black.

This office chair features an ergonomically designed backrest with prominent lumbar support that conforms to the natural curve of the spine. A 2-inch lumbar adjustment range allows you to find the most comfortable lower back posture, minimizing back fatigue during long work hours. The 2.9-inch thick seat cushion is made of high-density foam and breathable mesh fabric, offering excellent elasticity and resistance to deformation, providing lasting support for your hips. The backrest uses high-density, smooth, and breathable mesh fabric to ensure comfort and coolness all day long. The padded armrests can be tilted up and down, and the comfortable padding provides good elbow support. When not in use, the chair can be raised 90 degrees and stored under the desk, effectively saving space. The seat height is easily adjustable to accommodate different desk heights and personal preferences. In addition, it features a 90°-120° rocking function to help you relax after a long day. This chair can rotate 360°, and smooth, quiet casters ensure easy movement on various surfaces, allowing you to easily reach every corner of your workspace. Suitable for offices, living rooms, bedrooms, studies, meeting rooms, and other locations.