The model in DXRacer's Boss series has a tall, wide backrest and complements a bigger-built user. The Boss Series’ high-density cold cure foam filling makes these chairs comfortable for extended use, especially for duration of 8 hours and longer. With a tubular steel frame and a metal star base, as well as comfortable adjustable armrests and large 3” casters the Boss Series offers superb stability. With an integrated headrest, adjustable lumbar support cushion, and a tilt-mechanism angling all the way back to a maximum of 120 degrees, you're sure to be comfortable. The heaviest load for this chair is approx. 200 kg (441 lbs).