Hacker is the most popular and best-selling model of all SpinaliS chairs. It owes its popularity to its vast versatility and excellent price vs. value ratio. Hacker is very popular not only among specialists in the computer industry, but also amon...moreg others who spend many hours in front of a computer throughout the day. This model is suitable for both men and women. It is becoming increasingly popular even among parents who are choosing a chair for their children who also spend most of their free time in front of a computer. Hacker offers a standard movable seat that copies the movements of the seated person, thereby preventing improper posture. Our patented seats, thanks to their movements and tilting also eliminate frequent incorrect sitting habits - especially of younger generations, who rarely engage in ergonomic sitting by themselves. This unique system stabilizes muscles and strengthens them and gradually eliminates bad sitting habits. The Hacker's seat, backrest and armrests are height adjustable. It is suitable for most sizes and can be used anywhere by several users. Like all SpinaliS chairs it is made of high quality metal ensuring a long life. The basic frame color is black, but a chrome finish may be selected. Hacker is offered with three types of upholstery and up to eight color combinations. SpinaliS HACKER will become your best companion during long hours at work or in front of a home computer.