(Wholesale) Sihoo Doro S300
Sihoo Doro S300 stands as the pinnacle of ergonomic chair design by Sihoo to date. Engineered to redefine seating comfort, it features the groundbreaking Anti-Gravity Mechanism along with other innovative attributes. Discover unparalleled support and comfort that appears to defy gravity within the Sihoo Doro S300.
- Anti-Gravity Mechanism crafted with aerospace‑grade glass fiber
- A weightless recline experience
- Coordinated support when reclining
- Dual dynamic lumbar support
- Soft spacious headrest
- German Design Award 2023 Winner
(Wholesale) Sihoo Doro S300 - Black is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
-
30-Day Worry-Free Trial
Experience the chair firsthand for 30 days. If you don't like it, return it and get a full refund.
-
3-Year Warranty
Enjoy extra peace of mind and lasting comfort with our 3-Year Warranty.
-
Express Shipping
Get your chair in just 5-8 days.
-
Satisfaction Guarantee
uksupport@sihoooffice.com for guaranteed satisfaction.
Key Features
Aerospace Grade Anti Gravity Mechanism
4 Spring Shock Absorption System
Dual Wing Adaptive Lumbar Support
Integrated Floating Headrest
Weightless Anti-Gravity Recline
The S300's aerospace-grade glass fibre elastic plates respond naturally to your body weight. Choose from three optimal recline positions (100°, 110°, 130°) - each engineered for different tasks, from upright focus to relaxed contemplation.
Lumbar support that cradles your back
The wing-like dual lumbar pads adjust to your body and posture, giving you solid lower back support. You can also fine-tune the angle (90°-105°) with the gas lift for a perfect fit.
-
![]()
Ultimate Bionic 6D Armrests
Fully adjustable in six dimensions - height, width, depth, angle, pivot, and tilt. The dual-joint bionic design moves like your own arm, offering countless positions to perfectly support your work style.
-
![]()
Intuitive One-Touch Controls
All adjustments - seat height, depth, recline, and tension - are integrated in one accessible location. Ergonomically designed controls make finding your perfect position effortless.
-
![]()
Synchronized Support System
The 4-point linkage system automatically adjusts the seat as you recline, maintaining optimal spine alignment. Your lower back stays perfectly supported at any angle.
-
![]()
Italian Velvet Mesh
Italian velvet woven with DuPont elastomers creates a cloud-soft surface that's breathable yet supportive. Engineered for durability - maintains its shape after 200,000+ uses while providing sofa-like comfort.
Adjustable Backrest for Every Height
The telescopic backrest extends through 5 positions to perfectly align with your shoulders and neck, accommodating users from 5' to 6'3" (150-190cm). While the backrest adjusts to your height, the lumbar support remains optimally positioned for consistent lower back comfort.
Specifications
-
![]()
Core Features
- Ultra-wide integrated headrest
- Anti-Gravity mechanism with aerospace-grade glass fiber plates
- Italian velvet & DuPont TPEE mesh
- 4-spring suspension system
- Upgraded waterfall-shaped seat cushion
- Dual dynamic lumbar support (90°–105° adjustable)
- 6D adjustable armrests
-
![]()
Specifications
- Seat Height: 47 – 55.5 cm (18.50 – 21.85 in)
- Seat Width: 51.5 cm (20.28 in)
- Seat Depth: 40 – 47 cm (15.75 – 18.50 in)
- Armrest Height: 73 – 79.5 cm (28.74 – 31.30 in)
- Armrest Adjustment Range: 6.5 cm (2.56 in)
- Recline Angles: 100°, 110°, 130°
- Armrest Pivot Angle: 75°
- Armrest Upward Angle: 35°
- Overall Height: 109.5 – 125 cm (43.11 – 49.21 in)
- Net Weight: 26.2 kg (57.75 lb)
- Max Recommended Load: 136 kg (300 lb)
- Recommended User Height: 150 – 190 cm (5'0" – 6'3")
FAQs
How does the anti-gravity mechanism work?
How does the anti-gravity mechanism work?
The mechanism uses aerospace-grade materials and precision engineering to create a counterbalance system that neutralises your body weight, creating a floating sensation while maintaining full support.
Is assembly difficult?
Is assembly difficult?
Not at all! Most customers complete assembly in 15-20 minutes using our clear instructions. No special tools required.
What's the difference between S300 and S100?
What's the difference between S300 and S100?
The S300 features the anti-gravity mechanism, dual dynamic lumbar support, 6D armrests, and premium materials throughout - representing our absolute best technology.
Can it support larger users?
Can it support larger users?
Yes, the S300 is tested to 136kg and suitable for users of all heights with its adjustable design.
How does the warranty work?
How does the warranty work?
Please refer to our warranty page for detailed terms and conditions. We offer comprehensive protection with easy claim processes.
"Moreover, the entire seat will coordinate when you recline with it, something that very few chairs of this style do..."
"'Defying gravity, Redefining Comfort' is no exaggeration. This ergonomic office chair is packed with innovative features that promise a weightless and comfortable experience."
"...which not only utilizes the latest sixth generation of the mechanism and is addressable in almost all joints and springs but also offers the best weightless reclin experience I've had so far..."
