ERGONOMIC SUPPORT: TRALT ergonomic office chair for back pain relief is a desk chair comfy enough for long hours, featuring adjustable lumbar support to promote natural posture. A wider seat (20" W x 17.3" D x 18.5"-21.3" H) helps distribute weight evenly, suitable for people of about 5'5" to 6'2". Flip-up armrests make it a comfy chair for small spaces ALLDAY COMFORT: Our office chair uses a 3.5-inch high-density sponge cushion, which balances softness and support, no sagging even after long hours of sitting. The leather cusion feels skin-friendly and easy to clean. Breathable mesh desk chair accelerates air circulation and reduces the stuffiness of the back, making it one of the best desk chairs for long hours MULTI SCENARIO CHAIR: This desk chair, fits seamlessly into home offices, corporate workspaces, study rooms, gaming rooms, or even as a chair for bedroom use. Ideal for professionals, home office workers, and gamers alike, it features smooth