ProtoArc Ergonomic Office Chair – EC200 High-Back Mesh Computer Chair with Lumbar Support, 3D Adjustable Headrest & Sliding Seat for 8 Hour Comfort, Big & Tall Home Office Desk Chairs - Black

Ergonomic Design, Healthy Office Work: Designed for modern professionals, the EC200 ergonomic chair combines comfort and health with adjustable lumbar support, seat depth, backrest, seat height, multi-dimensional headrest, and large armrests, serve people from 5'4" to 6'3" (Capacity up to 280 lbs). Tested for 8 hour comfort, this chair actively supports posture whether working from home or office. More than just seating - it's your health-focused productivity partner.

2-Way Adjustable Lumbar Support: Features 4-direction lumbar adjustment (2.36" height 0.8" depth customization), the computer desk chair contours to your spine's natural curve. High-strength mesh back distributes pressure evenly, reducing lower back strain by up to 50%. Ideal for those who spend long hours at a desk, it promotes better posture while keeping you focused and relaxed.

Tested for Safety and Durability: At ProtoArc, all of our chairs meet BS EN 1335 ergonomic requirements and have been tested by SGS according to ANSI/BIFMA X5.1 for key strength and stability. They feature a TÜV Rheinland–tested Class 4 gas lift (EN 16955) for smooth, ensuring smooth, stable height adjustment and reliable performance for everyday and long-term use.

Better Support Seat Cushion: Designed with a high-resiliency 55-density foam that provides optimal postural support and prevents sagging, while its pressure-distribution surface actively relieves sitting bone and sacral pressure—ensuring lasting comfort without numbness or the dreaded "office chair" syndrome, even for users up to 280 lbs.

Customizable Seat Depth: The sliding seat allows personalized seat depth in 5 positions with instant-lock mechanism adapts to your leg length. By optimizing the sitting area, the computer chair maintains proper back support and releases leg pressure - whether you're taller or shorter users.

4 Tilts Back Angles: Adapt to your changing focus throughout the day with the 4-level backrest tilts. 90° (upright work), 105° (reading), 120° (phone calls), and 130° (relaxation). The ergonomic mesh chair features tilt tension control—simply rotate the tension knob to adjust reclining resistance to your preference.

Multi-Dimensional Headrest: The large mesh headrest offers 3D flexibility with dual-axis rotation, height, and depth adjustments to match your head and neck’s natural curve.

Easy Assembly & Reliable Support: We provide a detailed visual installation guide that allows you to easily follow step-by-step. No extra tools needed, 20-Min Assembly.

Location: DFW, TX