The Polaris office chair from Sitlife is a European certified office chair (EN-1335 standard) with a netwave back. Thanks to the sliding seat (6 cm), the adjustable backrest and the synchronous mechanism, this ergonomic office chair supports the prevention of back pain. The chair comes standard with multifunctional wheels, height- and width-adjustable armrests and an aluminum polished cross base. In addition, this office chair can be expanded with a lumbar support and 4D armrests. The Polaris office chair has a 5-year warranty and is 98% recyclable.