Ergonomic Mesh Office Chair Adaptive Lumbar Support

Keep your lower back supported as you shift between focused work and relaxed sitting. The SIHOO B100 ergonomic mesh office chair has dynamic lumbar support that follows your posture, without feeling stiff or forced.

Use it at your desk for work, study sessions, or gaming. Adjust the seat and headrest to suit your setup, then choose a recline angle when it’s time to lean back.

• Adaptive lumbar support: Moves with your posture as you lean forward, sit upright, or shift position.
• Adjustable fit: Set the seat height from 18.3" to 21.9", and adjust the headrest for support while typing, calling, or leaning back.
• Three recline positions: Lock the chair at 110°, 125°, or 135° to change your sitting position between tasks and breaks.
• Breathable mesh back: The full-mesh backrest allows air to circulate, helping reduce heat buildup during long desk sessions.
• Widened seat cushion: Spreads weight more evenly across your hips and thighs for balanced support.
• Stable, quiet movement: A reinforced metal base and SGS-certified Class 4 gas lift support up to 300 lbs. Smooth tilt control and quiet casters help limit distracting noise.
• Standards and support: Built to meet SGS and BIFMA standards, with 36-month coverage, 30-day easy returns, and support that responds within 24 hours.

Set it up in a shared home office where quiet casters help you move around without disturbing others.