【High-back Ergonomic Chair】This swivel desk chair has smart ergonomic features that enable individualized comfort throughout extended work, gaming, or study periods. These features include a multi-adjustable headrest, folding padded armrests, flexible lumbar support, adjustable back tilt angle, and adjustable seat height. 【Stay Cool, Enjoy All-day Comfort】Unlike leather office chairs, this mesh computer chair allows for better airflow behind your back, which will not let you feel sweaty or uncomfortable in hot weather. Also, the foam-padded seat provides a sitting area of 50cm (width) by 51cm (depth) for optimal comfort. 【Foldable Armrest Design】This computer office chair is designed to save space by allowing you to store it under the desk when not in use.