Work chair with permanent contact, featuring castors and leatherette upholstery. It is versatile for use in R&D, clean rooms, laboratories, and factories. The backrest permanently adjusts to the user's sitting posture, relieving muscles and vertebrae. The backrest angle can be locked in any position, with a height of 430 mm. The seat and backrest are optionally available with fabric cover in anthracite, which is soft, breathable, and hard-wearing, or imitation leather cover in blue, which is antibacterial, antifungal, and antimicrobial. Seat dimensions are 460 x 440 mm. The ergonomic design includes a permanent contact backrest, making it suitable for laboratory environments.