Ergonomic Comfort - An ergonomically curved backrest with a wing design provides excellent back support, and the chair offers additional comfort with a padded headrest and thick, plush seat cushion. Flip-Up Function - Versatile flip-up armrests make it easy to store the chair under your desk or sit comfortably cross-legged, ensuring adaptability to a wide range of settings. BIFMA Certified - To ensure safety and durability, every component, including the gas lift, metal base, and dual casters, is BIFMA certified. Premium Leather - The soft and skin-friendly premium faux leather is resistant to stains, scratches, peeling, and cracking for a long time. It's also easy to clean. Customizable Function - You can easily adjust and lock the tilt with the tilt tension control and customize the height and 360-degree rotation as needed.