A good office chair is the foundation of any productive workspace. Whether you're working from home full-time or splitting days between the office and kitchen table, the right chair supports your posture, reduces back pain, and keeps you comfortable through long sessions. Look for adjustable seat height and armrests as a minimum, and consider lumbar support and tilt mechanisms if you spend more than four hours a day seated. Mesh backrests offer better airflow in warmer months, while foam options tend to feel more cushioned from day one. We've tested and compared the most popular ergonomic office chairs available in the UK to help you find the right fit for your budget and setup.