Office chair with mesh on the backrest and headrest. 2 versions: one with a seat made of cold foam injected into a mold (molded foam) and another with mesh seat. Multifunctional lumbar support adjustable up and down or forward and backward. Height adjustment of the backrest with an up-down system (0-65 mm). Synchronous mechanism with locking in 4 positions and tension adjustment. Mechanism for seat depth adjustment (0-50 mm), 6 locking positions. 2D height-adjustable armrests with a soft touch surface, adjustable longitudinally and angularly. Ø 60 mm wheels, universally suitable for all surfaces. Ø 700 mm chrome steel base. Heavy-duty gas lift (class 4). Load capacity: 150 kg. Warranty: 36 months.