SIHOO - C300 Ergonomic Office Chair with Soft 3D Armrests, Dynamic Lumbar Support, Adjustable Backrest - Black

The Sihoo Doro C300 Pro Ergonomic Office Chair redefines comfort with its multi-functional adjustable design, featuring a 3D headrest, adaptive lumbar support, ultra-soft 6D armrests (adjustable in five directions), seat depth adjustment, intelligent weight-sensing reclining mechanism, and breathable mesh fabric for all-day comfort. Its adaptive dynamic lumbar support moves with your body to relieve back pain, while the wider seat and 105°-135° recline range cater to taller users and relaxation needs. The height-adjustable backrest (with 2.36" travel) and flexible triangular frame provide continuous support as you shift positions. Certified by EU REACH, EN1335, German TUV, and US SGS BIFMA standards, this chair boasts 12 patents and a SGS-certified 4-stage pneumatic lift for durability. Backed by a 3-year warranty, we offer free replacement parts—experience next-level ergonomic support with the Doro C300 Pro.

This ergonomic office chair features a breathable mesh back for optimal airflow and comfort. It includes an adjustable headrest, lumbar support, and flip-up armrests for personalized, space-efficient comfort. Built with a sturdy frame, metal base, and a reliable level-3 gas lift, it ensures durability and stability. Designed to promote proper posture and reduce strain during long sitting hours.

Imagine a chair that doesn't just sit there—it sits with you. Whether you're grinding through spreadsheets in your home office, catching up on emails from the living room, or diving into a weekend movie marathon in your entertainment room, the SIHOO B100 ergonomic office chair is designed to move, breathe, and adapt to your life. Let’s start with your back. The adaptive dynamic lumbar support features a spring-loaded pillow that gently responds to every shift in your posture. Lean forward to type—it supports. Sit back to think—it follows. It’s like having a co-pilot for your spine, helping maintain your natural S-curve whether you're deep in focus or just taking a breath. Now, imagine this: you’ve just finished a long day of back-to-back meetings. You wheel your desk chair away from the monitor, recline to 135°, and pull out the built-in footrest. Suddenly, your office chair becomes a lounge chair. That’s the kind of versatility this mesh chair offers. With three recline angles—110° for work, 125° for casual conversation, and 135° for full-on chill mode—it transitions as smoothly as you do. The extra-wide 2D headrest adjusts to your height, so your neck never has to strain. The flip-up armrests let you tuck the chair completely under most desks when not in use—perfect for tight spaces in a bedroom or studio apartment. And when you're gaming or watching movies, the arms recline with you, keeping your shoulders relaxed and your focus intact. Worried about heat? The full-mesh chair back breathes like linen. Air flows through freely, so you stay cool even during intense gaming sessions or long writing sprints. The pressure-relief cushion is thoughtfully designed to distribute your weight evenly, reducing discomfort in your hips and thighs—especially important if you're spending hours in your computer chair. This isn't just a pretty seat. It's built to last. With a reinforced frame and a heavy-duty base, this big and tall office chair supports up to 300 lbs, offering stable, quiet performance whether you're rolling across hardwood or carpet. The tilt mechanism is smooth and silent—so, so no one in the next room will hear you lean back during a Zoom call. From your home office to your entertainment room, from Zoom meetings to movie nights, the SIHOO B100 is more than just an executive chair—it's your personal comfort zone, ready whenever you are. Backed by a 3-year warranty and 30-day returns, it's comfort you can count on.