Upright
Keeps your spine in natural S-curve.
Sihoo B300 Pro Ergonomic Office Chair with 4D Lumbar Support
Sihoo B300 Pro Ergonomic Office Chair with 4D Lumbar Support
Regular price
$329.99
Regular price
$369.99
Sale price
$329.99
Unit price
per
Taxes included.
Shipping calculated at checkout.
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Overcome sitting pain
Enhance your workplace
Save money
Sustainable development
Sihoo B300 Pro
Precision Support.
Every Body.
Highlights at a Glance
4D MicroFit Lumbar Support
Precision Support. Right Where You Need It.
Moves with your back for support that feels just right. Adjust 0.8" in depth and 2" in height, with subtle movement that follows you as you sit, lean, or recline.
Working
Stay supported through every task.
Moving
Full support through twist and turn.
Recline
Lean back. Stay supported.
Adjustable Contour-Aligned Backrest
Your Back. Your Fit.
Shaped to follow your spine for natural, full-back support. Adjust the height by 2.2" to find your perfect fit.
Made to fit. 2.2" of height adjustment.
Full-back support. Top to bottom.
6D All-Around Armrests
Made to Move With You.
Rotate. Adjust. Flip up. Recline. Support that follows wherever you go.
Work
Support for relaxed, productive work.
Recline
Full-body relaxation, arms included.
Move
Unrestricted movement, on demand.
Any Position
Arm support, in every position.
Flip Up. Tuck Away.
More room when you need it.
3D Ultra-Wide Headrest
More Room to Relax.
Wide, adjustable support for your head and neck—whether you're sitting upright, leaning back, or resting to the side.
Spacious design for all-day comfort.
Adjust easily. Align perfectly.
Weight-Adaptive Recline
Just Lean Back.
Automatically adjusts recline resistance to your weight. No knobs. No setup. Just smooth, effortless recline.
Smooth, effortless recline.
Stable recline. Easy return.
105° / 120° / 135° Recline
Work. Create. Unwind.
Three lockable recline angles for focus, creativity, and relaxation.
Adjust Without Reaching.
Height. Depth. Recline. All right at your fingertips.
FlexWeave™ Mesh
Cool. Soft. Supportive.
Breathable mesh keeps air flowing while flexing with your body for lasting comfort and support.
CERTIFIED DURABILITY
Built to Last. Certified to Perform.
Tested to meet rigorous BIFMA standards for strength, durability, and everyday performance. Built for years of work, rest, and everything in between.
Made for Your Space
Responsive ergonomic support designed to move with you throughout the day.
Why Upgrade to B300 Pro?
| Product |
Regular price
$329.99
Regular price
Unit price
per
|
Regular price
$349.99
Regular price
Unit price
per
|
|---|---|---|
| Armrests | 6D All-Around Armrests | 4D 360° rotation |
| Lumbar Support | 4D Micro-Fit Lumbar | Composite sacral pillow |
| Headrest | 3D Ultra-Wide Headrest | Wide 3D Headrest |
| Seat Depth Adjustment | approximately 2 inches | × |
Why Upgrade to B300 Pro?
Regular price
$329.99
Regular price
$369.99
Sale price
$329.99
Unit price
per
Regular price
$349.99
Regular price
Sale price
$349.99
Unit price
per
Armrests
6D All-Around Armrests
Armrests
4D 360° rotation
Lumbar Support
4D Micro-Fit Lumbar
Lumbar Support
Composite sacral pillow
Headrest
3D Ultra-Wide Headrest
Headrest
Wide 3D Headrest
Seat Depth Adjustment
approximately 2 inches
Seat Depth Adjustment
×