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Experience premium seating and spinal alignment with the CloudSit Lumina Ergonomic High Back Office Chair—a doctor-recommended choice designed to support productivity, posture, and comfort. Featuring a strong internal frame made from glass-filled nylon with a breathable mesh backrest and seat, this chair ensures lasting airflow and ergonomic stability. The heavy-duty synchro tilt mechanism combined with a sliding seat and Class 3 gas lift offers smooth, customized recline and height adjustments. With adjustable nylon arms, a supportive headrest, and lumbar support, the Lumina chair suits executives, professionals, and home-office users alike. Its robust aluminum base and 60mm nylon castors provide strength, mobility, and durability. Easy to assemble with clear instructions included, it supports up to 120 kg and comes with a 3-year CloudSit warranty.