Ergonomic chair with executive design – features adjustable seat depth, 4D armrests, lumbar support, pneumatic seat height, tilt tension adjustment, forward tilt lock, and fully upholstered seat and back High backrest – ideal for taller users – offers extended back support for maximum comfort and posture alignment throughout the workday Patented synchronized tilting mechanism – dual backrests adapt independently to the user’s body and spine, delivering responsive ergonomic support in every posture Sustainable and durable materials – Fame fabric (95% Wool, 5% Polyamide) is OEKO-TEX and EU Ecolabel certified; abrasion-resistant with 120,000 Martindale cycles Easy to assemble and made to last – 12-year manufacturer warranty; wheels suitable for both hard and soft floors; crafted in France with premium materials