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$599.88+The SIHOO Doro S300 Gravity-Defying Ergonomic Office Chair is engineered for near-weightless comfort during long work sessions. Its Anti-Gravity recline mechanism reduces pressure as you lean back, while dual dynamic lumbar support helps cradle and stabilize your lower back. Finished in a soft, breathable “cloud-like” mesh, the S300 is built for posture-focused support, durability, and premium adjustability in home offices and professional workspaces.
The Doro S300 is designed to reduce sitting fatigue by combining an aerospace-inspired Anti-Gravity recline system with adaptive ergonomic support. You can adjust tension to suit your body and recline smoothly to virtually any angle without locking—then return easily to upright when you’re ready.
For personalized comfort, the S300 pairs wing-like dual lumbar pads with multi-direction adjustability, a spacious integrated headrest for neck and shoulder support, and 6D coordinated armrests to support different postures across work and recline.
| Model | SIHOO Doro S300 Gravity-Defying Ergonomic Office Chair |
|---|---|
| General Dimensions | 28" W x 28" D x 42"–49" H |
| Product Weight | 57.12 lbs |
| Weight Capacity | 330 lbs |
| Materials | Aluminum, Mesh |
| Chair Back Lifting Height | 42.99"–49.29" |
| Seat Depth | 17.13"–18.11" |
| Max Hip Width | 20.08" |
| Armrests | 6D coordinated armrests (up/down, left/right, front/back, inward/outward, tilt-lock of armrests, synchronized recline) |
| Certifications | BIFMA and SGS (listed) |
| Assembly Required | Yes (requires assembly) |
| Warranty | 5-year warranty |
Yes. The S300 is built for extended sitting with breathable mesh, dual dynamic lumbar support, and an Anti-Gravity recline that reduces pressure as you lean back.
The SIHOO Doro S300 supports up to 330 lbs.
Its Anti-Gravity mechanism lets you adjust tension to match your body and recline smoothly without needing to lock the chair, helping you feel more supported and less pressured.
Yes. The chair uses dual dynamic lumbar pads that adapt to posture, and you can fine-tune the support angle (90°–105°) for a more personalized fit.
Yes. The S300 includes 6D coordinated armrests with multi-direction adjustments and synchronized recline support for different work and rest postures.
Assembly is required. Plan for a bit more time than basic chairs because the S300 uses heavier, premium components.
The S300 includes a 5-year warranty.
The SIHOO Doro S300 Gravity-Defying Ergonomic Office Chair is engineered for near-weightless comfort during long work sessions. Its Anti-Gravity recline mechanism reduces pressure as you lean back, while dual dynamic lumbar support helps cradle and stabilize your lower back. Finished in a soft, breathable “cloud-like” mesh, the S300 is built for posture-focused support, durability, and premium adjustability in home offices and professional workspaces.
The Doro S300 is designed to reduce sitting fatigue by combining an aerospace-inspired Anti-Gravity recline system with adaptive ergonomic support. You can adjust tension to suit your body and recline smoothly to virtually any angle without locking—then return easily to upright when you’re ready.
For personalized comfort, the S300 pairs wing-like dual lumbar pads with multi-direction adjustability, a spacious integrated headrest for neck and shoulder support, and 6D coordinated armrests to support different postures across work and recline.
| Model | SIHOO Doro S300 Gravity-Defying Ergonomic Office Chair |
|---|---|
| General Dimensions | 28" W x 28" D x 42"–49" H |
| Product Weight | 57.12 lbs |
| Weight Capacity | 330 lbs |
| Materials | Aluminum, Mesh |
| Chair Back Lifting Height | 42.99"–49.29" |
| Seat Depth | 17.13"–18.11" |
| Max Hip Width | 20.08" |
| Armrests | 6D coordinated armrests (up/down, left/right, front/back, inward/outward, tilt-lock of armrests, synchronized recline) |
| Certifications | BIFMA and SGS (listed) |
| Assembly Required | Yes (requires assembly) |
| Warranty | 5-year warranty |
Yes. The S300 is built for extended sitting with breathable mesh, dual dynamic lumbar support, and an Anti-Gravity recline that reduces pressure as you lean back.
The SIHOO Doro S300 supports up to 330 lbs.
Its Anti-Gravity mechanism lets you adjust tension to match your body and recline smoothly without needing to lock the chair, helping you feel more supported and less pressured.
Yes. The chair uses dual dynamic lumbar pads that adapt to posture, and you can fine-tune the support angle (90°–105°) for a more personalized fit.
Yes. The S300 includes 6D coordinated armrests with multi-direction adjustments and synchronized recline support for different work and rest postures.
Assembly is required. Plan for a bit more time than basic chairs because the S300 uses heavier, premium components.
The S300 includes a 5-year warranty.
The SIHOO Doro S300 Gravity-Defying Ergonomic Office Chair is engineered for near-weightless comfort during long work sessions. Its Anti-Gravity recline mechanism reduces pressure as you lean back, while dual dynamic lumbar support helps cradle and stabilize your lower back. Finished in a soft, breathable “cloud-like” mesh, the S300 is built for posture-focused support, durability, and premium adjustability in home offices and professional workspaces.
The Doro S300 is designed to reduce sitting fatigue by combining an aerospace-inspired Anti-Gravity recline system with adaptive ergonomic support. You can adjust tension to suit your body and recline smoothly to virtually any angle without locking—then return easily to upright when you’re ready.
For personalized comfort, the S300 pairs wing-like dual lumbar pads with multi-direction adjustability, a spacious integrated headrest for neck and shoulder support, and 6D coordinated armrests to support different postures across work and recline.
| Model | SIHOO Doro S300 Gravity-Defying Ergonomic Office Chair |
|---|---|
| General Dimensions | 28" W x 28" D x 42"–49" H |
| Product Weight | 57.12 lbs |
| Weight Capacity | 330 lbs |
| Materials | Aluminum, Mesh |
| Chair Back Lifting Height | 42.99"–49.29" |
| Seat Depth | 17.13"–18.11" |
| Max Hip Width | 20.08" |
| Armrests | 6D coordinated armrests (up/down, left/right, front/back, inward/outward, tilt-lock of armrests, synchronized recline) |
| Certifications | BIFMA and SGS (listed) |
| Assembly Required | Yes (requires assembly) |
| Warranty | 5-year warranty |
Yes. The S300 is built for extended sitting with breathable mesh, dual dynamic lumbar support, and an Anti-Gravity recline that reduces pressure as you lean back.
The SIHOO Doro S300 supports up to 330 lbs.
Its Anti-Gravity mechanism lets you adjust tension to match your body and recline smoothly without needing to lock the chair, helping you feel more supported and less pressured.
Yes. The chair uses dual dynamic lumbar pads that adapt to posture, and you can fine-tune the support angle (90°–105°) for a more personalized fit.
Yes. The S300 includes 6D coordinated armrests with multi-direction adjustments and synchronized recline support for different work and rest postures.
Assembly is required. Plan for a bit more time than basic chairs because the S300 uses heavier, premium components.
The S300 includes a 5-year warranty.
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