An office chair is a specially designed seat used in workplaces to provide comfort and support during long hours of sitting. These chairs often come with adjustable features, such as height, armrests, and lumbar support, allowing users to customize their seating position for better posture and reduced strain on the body. Many office chairs are made with breathable materials to keep users cool and comfortable. They can also have wheels for easy movement around the workspace, making it simple to reach different areas of a desk or office without standing up. Overall, a good office chair is essential for productivity and well-being at work.