Ergonomic design Our mesh office chair adopts an S-shaped backrest that conforms to the human spine curve, with an adjustable backrest support, which can fit the waist and back contours more accurately, effectively relieve long-term sitting fatigue, improve sitting posture, protect your spinal health, and make work more focused and lasting Comfortable and wide seat Equipped with a high-elastic and thickened 4.3-inch sponge cushion. The seat width is increased to 20.1 inches, providing a spacious support area, effectively dispersing the pressure on the buttocks and legs, so that you can feel comfortable and relaxed even if you sit for a long time Reversible armrests The thickened and reversible armrests are 1.6 inches thick, allowing your arms to maintain lasting comfort. The space-saving design allows the chair to be easily pushed under the table and folded up with just a slight lift, making it perfect for compact offices, study rooms or home environments Rocking Function