Upgrade Big and Tall Office ChairThis chair has been improved and upgraded. We have increased the height of the back of the chair so that your head and neck can be effectively supported, and the fatigue and soreness caused by long hours of work can be relieved. Not only that, but we've deepened and widened the range of cushions to provide you with an even more comfortable seating experience, maximizing your performance at home or at work. Luxury Bonded Leather with Lumbar Support This comfortable office chair adopts an ergonomic S-shaped arch back design, with excellent upper and middle back support, thickened sponge in the middle and low waist position, and supports your back and its natural shape to prevent injury or strain. Helps you maintain the normal curvature of your lower back, keeping you strong and healthy.