Pop-out Lumbar 5° Sloping Seat Base Stain-resistant Leather 5D Armrests Magnetic Head Pillow 90°-135° Recline 4-Level Pop-out Support.4-Way Built-in Adjustment.Redesigned with added flexibility, Kaiser 4s integrated lumbar systemdelivers customized support and comfort to your lower back in every sitting posture.Dynamic Comfort in All PosturesWhether gaming, working, or creating, the newly introduced pop-out featuredelivers optimal support to your heart's content.Superior Stain ResistanceCombined with a stain-repellent material during formulation, Kaiser 4s leather comes with superior stain resistance, outperforming regular leathers by 80%. This lets you easily clean common stains like coffee spills, snack crumbs, or pet prints with a simple wet wipe. And for tougher ones, you can use an alcohol spray before a quick wipe*. Kaiser 4 is built to stay clean and set for any battle you want to take on.Ultra DurabilityMade with a sturdy, resilient base cloth and advanced anti-discoloration