SYNC6Six adjustment levels from head to feet for fine-tuned comfort Synchronous tiltrecline while keeping the legs extended and relaxed Forward seat tilt for improved sitting posture CORE.RDYSupport melds to your lower back in three dimensions Detachable memory foam headrest with winged design to provide side & neck supportDouble-sided multipurpose under desk footrest Wide material and color selection: Racer, Modern and Loft Adjustable four-directional cushioned armrests Adjustable reclining backrestCORE RACERFeaturing CORE.RDY tech, a one-of-a-kind lumbar support that self-adjusts to your posture in all directions, CORE delivers the most ergonomic sitting experience possible. Built with SYNC6 multi-functional mechanism for 6-way adjustability to fit your body and sitting position.SYNC6 MULTI-FUNCTIONAL MECHANISMSIX LEVELS OF FINE-TUNED COMFORTAdjust your chair to fit your unique body shape, size, and posture. CORE is built with SYNC6, a multi-functional mechanism that all