Black Friday and Cyber Monday are the best times of the year to upgrade your workspace. A good chair isn’t just furniture — it’s the foundation of comfort and productivity.
This year, Sihoo is offering exclusive deals across its Doro, M and L Series ergonomic chairs. Whether you work from home or spend long hours at the office, these models are designed to keep you supported, focused and pain-free.
Part 1 – Best Ergonomic Chairs for a Healthier Workday
Upgrading your chair can make a bigger difference than upgrading your tech. During this Black Friday and Cyber Monday, Sihoo’s Doro Series offers advanced ergonomic design to keep you supported and productive all day.
Sihoo Doro C300 Ergonomic Office Chair
The Doro C300 provides adaptive lumbar support that adjusts automatically to your posture. It features a 3D headrest, 4D armrests, and breathable mesh for consistent comfort.
The gravity-balance mechanism senses your weight and adjusts recline tension to create smooth, stable movement — helping reduce pressure on your spine through long hours of sitting.
Doro C300 Ergonomic Office Chair
Engineered with adaptive lumbar support, 4D adjustable armrests, and a breathable mesh design, the Doro C300 delivers all-day ergonomic comfort and effortless recline.
Sihoo Doro C300 Pro Ergonomic Chair
The Doro C300 Pro enhances adjustability and precision. It includes a Domino Dynamic Lumbar System and a height-adjustable backrest for tailored support.
A smart weight-sensing recline and 6D armrests ensure natural balance and flexibility. Built for those who need fine-tuned comfort during intensive work sessions.
Sihoo C300 Pro Ergonomic Office Chair
Single-lever control simplifies everything, BM-Tracking lumbar follows your movements, meeting strict European safety standards.
Sihoo Doro S300 Gravity-Defying Ergonomic Chair
The Doro S300 uses an aviation-grade anti-gravity mechanism made from glass-fibre composite. It reclines smoothly at 100°, 110°, and 130°.
A 6D floating lumbar system adapts to spinal movement, and the four-spring cushion reduces pressure and shock — creating a light, supported sitting experience.
Sihoo Doro S300 Ergonomic Office Chair
Outstanding ergonomics meet futuristic design. The ideal chair for long, healthy work.
Sihoo Doro S100 Ergonomic Office Chair
The Doro S100 offers dual dynamic lumbar support and a separate backrest for full spinal stability.
Its enlarged seat and 4D armrests allow comfortable positioning, while the elastic mesh keeps airflow steady. A dependable ergonomic choice for everyday use.
Sihoo S100 Ergonomic Office Chair
Featuring dual dynamic lumbar support, 5-level adjustable back height, and flexible 4D armrests, the Doro S100 adapts perfectly to your posture for lasting comfort and balance.
Part 2 – Best Chairs for Everyday Work & Value
For those seeking everyday comfort at an affordable price, the Sihoo M Series delivers simple, effective ergonomics that suit most workspaces.
Sihoo M57 Ergonomic Office Chair
The M57 features dual-adjustable lumbar support, full-mesh design, and 3D armrests for versatile positioning.
It supports up to 150 kg, reclines 126°, and follows an S-shaped backrest curve — offering firm support and breathability for long-term use.
Sihoo M57 Classic Office Chair
Breathable full-mesh ergonomic chair with dual-adjust lumbar, 3D armrests and 126° recline.
Sihoo M18 Ergonomic Office Chair
The M18 includes a W-shaped cushion, mesh back, and dual lumbar support system for entry-level ergonomic comfort.
Its recline up to 126° and height-adjustable armrests make it ideal for students or home-office users seeking comfort on a budget.
Sihoo M18 Classic Office Chair
Mesh-back ergonomic chair with W-shaped cushion, dual-adjust lumbar support and 126° recline.
Sihoo M59AS Ergonomic Office Chair
The M59AS combines flexibility and compact design. A dual-section backrest supports the whole spine, and flip-up 3D armrests allow it to fit neatly under desks.
The dual-joint headrest and breathable mesh seat make it a great choice for smaller workspaces or multi-purpose rooms.
Sihoo M59AS Classic Office Chair
A full-mesh, dual-section backrest chair with 3-D flip-up armrests and dual-joint head support.
Part 3 – Premium & Executive Setups
For users who value both style and substance, the Sihoo L Series brings luxury and ergonomics together.
Sihoo L3 Mid-Century Luxury Leather Chair
The L3 pairs mid-century design with modern comfort. With a 52 cm seat width and 48 cm back width, it provides generous space for relaxed posture.
Its backrest offers 3 height settings (up to 4 cm adjustment) and reclines to 125°. Wrapped in premium faux leather with a class-4 gas lift, it’s built for executive offices or stylish home setups.
Sihoo L3 Mid-Century Luxury Leather Chair
A mid-century-inspired luxury leather chair combining timeless style with ergonomic comfort and adjustability.
Final Thoughts
This Black Friday and Cyber Monday, Sihoo’s Doro, M, and L Series highlight how science and design can redefine comfort.
Whether you’re building a home office, upgrading your workspace, or simply seeking better posture, there’s a Sihoo chair engineered to support you every day.
