The seat’s upholstery is filled with high-quality, soft foam, which is 4 centimetres thick in the backrest and 7 centimetres thick in the seat cushion. Moreover, both the seat and the backrest are profiled to ensure maximum comfort and to support your spine. Nitro 880 is covered with a durable, and high-quality eco leather. In addition, there are two soft cushions – one as a head rest, and the other one with the adjustable straps, to support your lumbar.