Ergonomic Mesh Office Chair

Adjustable Lumbar Support: Split breathable mesh back relieves waist pressure, knob-adjustable support angle eases long-sitting fatigue Flexible Neck Protection: Vertically adjustable lumbar pad + 3D flexible headrest for full spine fitting support Heavy-Duty Stable Structure: Reinforced nylon frame holds up to 400lbs, certified 4-class gas lift for safe use Thickened Comfort Seat: 2.75-inch high-density foam cushion, spacious sitting area, effective pressure relief Simple Installation: Easy to assemble with detailed guide, reliable after-sales support available