SIHOO M57 Ergonomic Office Chair
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$249.88+The SIHOO Doro C300 Pro Ergonomic Office Chair is built for posture-first comfort during long work sessions. Its dynamic lumbar support automatically adapts as you move, while a breathable mesh back and seat help you stay cool and supported throughout the day. With adjustable seat depth, coordinated multi-direction armrests, and a fit range designed for a wide variety of users, the C300 Pro delivers modern ergonomic performance for home offices and professional workspaces.
The C300 Pro is designed to reduce sitting fatigue by combining self-adaptive lower-back support with a flexible mesh seating system. Key ergonomic adjustments—including seat depth—help you fine-tune your fit so your thighs are supported without pressure behind the knees.
Whether you’re upright for focused work or leaning back for a break, the coordinated recline support and adjustable contact points help maintain balanced comfort and healthy alignment. Built to commercial-minded standards, it’s listed as BIFMA and SGS certified and supports up to 330 lbs.
| Model | SIHOO Doro C300 Pro Ergonomic Office Chair |
|---|---|
| Weight Capacity | 330 lbs |
| Upholstery | Breathable mesh |
| Armrest Material | Soft PU coated armrests |
| Armrests | 6D coordinated adjustable armrests |
| Lumbar Support | Dynamic (self-adaptive) lumbar support |
| Seat Depth | Adjustable (16.81" – 17.76") |
| Overall Dimensions | 28" W x 28" D x 45" – 51" H |
| Product Weight | 55.34 lbs |
| Max Hip Width | 20.28" |
| Designed User Height Range | 5' to 6'3" |
| Assembly Required | Yes |
| Certifications | BIFMA and SGS (listed) |
Yes. The C300 Pro is designed for long workdays with breathable mesh, dynamic lumbar support, and adjustable seat depth to reduce fatigue.
Yes. It features dynamic (self-adaptive) lumbar support that continuously adjusts to your movements to help maintain healthy spinal alignment.
The C300 Pro is designed to fit a wide range of users, typically from about 5′ to 6′3″, and supports up to 330 lbs.
Yes. The chair includes 6D coordinated armrests that adjust in multiple directions to support typing, upright sitting, and reclining positions.
Yes. Most users complete assembly in about 15 to 25 minutes using the included instructions and tools.
The SIHOO Doro C300 Pro Ergonomic Office Chair is built for posture-first comfort during long work sessions. Its dynamic lumbar support automatically adapts as you move, while a breathable mesh back and seat help you stay cool and supported throughout the day. With adjustable seat depth, coordinated multi-direction armrests, and a fit range designed for a wide variety of users, the C300 Pro delivers modern ergonomic performance for home offices and professional workspaces.
The C300 Pro is designed to reduce sitting fatigue by combining self-adaptive lower-back support with a flexible mesh seating system. Key ergonomic adjustments—including seat depth—help you fine-tune your fit so your thighs are supported without pressure behind the knees.
Whether you’re upright for focused work or leaning back for a break, the coordinated recline support and adjustable contact points help maintain balanced comfort and healthy alignment. Built to commercial-minded standards, it’s listed as BIFMA and SGS certified and supports up to 330 lbs.
| Model | SIHOO Doro C300 Pro Ergonomic Office Chair |
|---|---|
| Weight Capacity | 330 lbs |
| Upholstery | Breathable mesh |
| Armrest Material | Soft PU coated armrests |
| Armrests | 6D coordinated adjustable armrests |
| Lumbar Support | Dynamic (self-adaptive) lumbar support |
| Seat Depth | Adjustable (16.81" – 17.76") |
| Overall Dimensions | 28" W x 28" D x 45" – 51" H |
| Product Weight | 55.34 lbs |
| Max Hip Width | 20.28" |
| Designed User Height Range | 5' to 6'3" |
| Assembly Required | Yes |
| Certifications | BIFMA and SGS (listed) |
Yes. The C300 Pro is designed for long workdays with breathable mesh, dynamic lumbar support, and adjustable seat depth to reduce fatigue.
Yes. It features dynamic (self-adaptive) lumbar support that continuously adjusts to your movements to help maintain healthy spinal alignment.
The C300 Pro is designed to fit a wide range of users, typically from about 5′ to 6′3″, and supports up to 330 lbs.
Yes. The chair includes 6D coordinated armrests that adjust in multiple directions to support typing, upright sitting, and reclining positions.
Yes. Most users complete assembly in about 15 to 25 minutes using the included instructions and tools.
The SIHOO Doro C300 Pro Ergonomic Office Chair is built for posture-first comfort during long work sessions. Its dynamic lumbar support automatically adapts as you move, while a breathable mesh back and seat help you stay cool and supported throughout the day. With adjustable seat depth, coordinated multi-direction armrests, and a fit range designed for a wide variety of users, the C300 Pro delivers modern ergonomic performance for home offices and professional workspaces.
The C300 Pro is designed to reduce sitting fatigue by combining self-adaptive lower-back support with a flexible mesh seating system. Key ergonomic adjustments—including seat depth—help you fine-tune your fit so your thighs are supported without pressure behind the knees.
Whether you’re upright for focused work or leaning back for a break, the coordinated recline support and adjustable contact points help maintain balanced comfort and healthy alignment. Built to commercial-minded standards, it’s listed as BIFMA and SGS certified and supports up to 330 lbs.
| Model | SIHOO Doro C300 Pro Ergonomic Office Chair |
|---|---|
| Weight Capacity | 330 lbs |
| Upholstery | Breathable mesh |
| Armrest Material | Soft PU coated armrests |
| Armrests | 6D coordinated adjustable armrests |
| Lumbar Support | Dynamic (self-adaptive) lumbar support |
| Seat Depth | Adjustable (16.81" – 17.76") |
| Overall Dimensions | 28" W x 28" D x 45" – 51" H |
| Product Weight | 55.34 lbs |
| Max Hip Width | 20.28" |
| Designed User Height Range | 5' to 6'3" |
| Assembly Required | Yes |
| Certifications | BIFMA and SGS (listed) |
Yes. The C300 Pro is designed for long workdays with breathable mesh, dynamic lumbar support, and adjustable seat depth to reduce fatigue.
Yes. It features dynamic (self-adaptive) lumbar support that continuously adjusts to your movements to help maintain healthy spinal alignment.
The C300 Pro is designed to fit a wide range of users, typically from about 5′ to 6′3″, and supports up to 330 lbs.
Yes. The chair includes 6D coordinated armrests that adjust in multiple directions to support typing, upright sitting, and reclining positions.
Yes. Most users complete assembly in about 15 to 25 minutes using the included instructions and tools.