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SIHOO M57 Compact Ergonomic Mesh Office Chair
SKU: M57
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$319.99
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SIHOO M57 Compact Ergonomic Mesh Office Chair
Compact Profile. Breathable Mesh. Adjustable Support.
The SIHOO M57 combines a mesh seat and back with adjustable lumbar support, a headrest and 3D armrests. Its slim profile makes it worth considering for a home office or smaller workspace.
Mesh Seat & Back Dual-Adjustable Lumbar 3D Armrests 126° Recline
A Slim Profile for Your Workspace
A streamlined backrest and open mesh design give the M57 a lighter appearance. The mesh seat offers a different feel from a foam cushion, so consider your preferred seat surface alongside the chair’s dimensions.
HPS Real-World Fit
Chair Fit and Desk Height Work Together
Based on our showroom experience, the M57’s compact, slim profile generally fits users 5'8" and under well. Height alone does not determine fit: check seat depth, clearance behind your knees, lumbar placement and headrest position.
The manufacturer’s supplied diagram lists a seat-height range of approximately 18.1"–21.7". Some shorter users will need a footrest even at the lowest setting.
HPS recommends a separate under-desk footrest when pairing this chair with a desk higher than 25". Set your chair height so you can reach the keyboard and mouse with relaxed shoulders, then support your feet if they do not rest comfortably on the floor. The footrest provides a stable surface without requiring you to lower the chair below your working height.
Adjustable Lower-Back Support
Move the lumbar support up or down and forward or backward to position it against your lower back. Adjust its height and depth while seated, aiming for comfortable contact rather than excessive pressure.
Adjustable Head Support
The headrest offers up to 3.9" of height adjustment and 45° of tilt, according to SIHOO. Position it to support your head comfortably when leaning back; its suitability depends on your torso height and sitting position.
Arm Support and Recline
3D Adjustable Armrests
Adjust the armrests in height, forward/backward position and pivot angle. Bring them into a position that supports your forearms while leaving your shoulders relaxed.
Recline up to 126°
Lean back for a break and use the tilt-tension control to adjust resistance to your body weight. Return to a supported working position when reaching for your keyboard and mouse.
Construction and Manufacturer Testing
The M57 has an aluminum alloy base and a manufacturer-listed 330 lb weight capacity. SIHOO lists BIFMA and SGS testing/certification claims for this model.
Manufacturer-supplied graphic. Logos may refer to different tests, materials or quality systems; they do not all represent whole-chair ergonomic certification.
Product Specifications
| Brand / Model | SIHOO M57 |
|---|---|
| Seat / Back Material | Mesh seat and mesh back |
| Seat Width / Depth | Approximately 20.1" / 18.1" |
| Seat Height | Approximately 18.1"–21.7" |
| Overall Height | Approximately 42.1"–48.2" |
| Base Footprint | Approximately 26" wide × 25.2" deep |
| Headrest Width / Height | Approximately 11.6" / 6.9" |
| Lumbar Adjustment | Height and depth |
|---|---|
| Armrests | 3D: height, forward/backward and pivot |
| Arm Height Above Seat | Approximately 6.3"–9.1" |
| Headrest Adjustment | Up to 3.9" height travel; 45° tilt |
| Recline | Up to 126°; tilt-tension adjustment |
| Weight Capacity | 330 lb, as listed by SIHOO |
| Assembly | Required; tools and instructions included |
Dimensions are approximate and taken from the supplied manufacturer diagrams. Seat height is not identified as a weighted measurement; mesh compression and measurement methods can affect the seated height.
Frequently Asked Questions
How does the M57 differ from the M18?
The M57 has a mesh seat and back with 3D armrests. The M18 pairs a mesh back with a cushioned seat and height-adjustable armrests. Choose based on seat feel and the adjustments you need. View the SIHOO M18 .
Does the M57 have a seat-depth slider?
SIHOO lists an approximately 18.1" seat depth; a seat-depth slider is not listed for this model. Check that you can sit against the backrest while leaving comfortable clearance behind your knees.
Can I use the chair without leaning against the headrest?
Yes. The headrest is most useful when leaning back. For upright desk work, adjust it so it does not push your head forward.
Can HPS help me evaluate fit before ordering?
Yes. Contact us with your height, desk height and chair preferences for guidance, or visit our Chicago showroom to compare chairs.
Assembly, Warranty & Delivery
Assembly: Assembly is required. Follow the supplied instructions and check all connections before use.
Warranty: SIHOO advertises a three-year manufacturer warranty. Contact HPS for applicable coverage and help with a warranty request.
Shipping: Free ground shipping within the contiguous 48 states. Local pickup and delivery/assembly options are available; contact us for arrangements.
Returns: HPS’s return policy applies to purchases through our store. Contact HPS or review the store’s current shipping and return policy before ordering.
Why Buy SIHOO from Healthy Posture Store?
Chicago Showroom
Compare chair fit, seat feel and adjustments in person, with guidance on pairing your chair with your desk.
Nationwide Support
Get help choosing before you order and support afterward from an ergonomic retailer serving customers since 2004.
Visit 2554 W. Lawrence Ave., Chicago, IL 60625, or call 773-596-5625.
SIHOO M57 Compact Ergonomic Mesh Office Chair
Compact Profile. Breathable Mesh. Adjustable Support.
The SIHOO M57 combines a mesh seat and back with adjustable lumbar support, a headrest and 3D armrests. Its slim profile makes it worth considering for a home office or smaller workspace.
Mesh Seat & Back Dual-Adjustable Lumbar 3D Armrests 126° Recline
A Slim Profile for Your Workspace
A streamlined backrest and open mesh design give the M57 a lighter appearance. The mesh seat offers a different feel from a foam cushion, so consider your preferred seat surface alongside the chair’s dimensions.
HPS Real-World Fit
Chair Fit and Desk Height Work Together
Based on our showroom experience, the M57’s compact, slim profile generally fits users 5'8" and under well. Height alone does not determine fit: check seat depth, clearance behind your knees, lumbar placement and headrest position.
The manufacturer’s supplied diagram lists a seat-height range of approximately 18.1"–21.7". Some shorter users will need a footrest even at the lowest setting.
HPS recommends a separate under-desk footrest when pairing this chair with a desk higher than 25". Set your chair height so you can reach the keyboard and mouse with relaxed shoulders, then support your feet if they do not rest comfortably on the floor. The footrest provides a stable surface without requiring you to lower the chair below your working height.
Adjustable Lower-Back Support
Move the lumbar support up or down and forward or backward to position it against your lower back. Adjust its height and depth while seated, aiming for comfortable contact rather than excessive pressure.
Adjustable Head Support
The headrest offers up to 3.9" of height adjustment and 45° of tilt, according to SIHOO. Position it to support your head comfortably when leaning back; its suitability depends on your torso height and sitting position.
Arm Support and Recline
3D Adjustable Armrests
Adjust the armrests in height, forward/backward position and pivot angle. Bring them into a position that supports your forearms while leaving your shoulders relaxed.
Recline up to 126°
Lean back for a break and use the tilt-tension control to adjust resistance to your body weight. Return to a supported working position when reaching for your keyboard and mouse.
Construction and Manufacturer Testing
The M57 has an aluminum alloy base and a manufacturer-listed 330 lb weight capacity. SIHOO lists BIFMA and SGS testing/certification claims for this model.
Manufacturer-supplied graphic. Logos may refer to different tests, materials or quality systems; they do not all represent whole-chair ergonomic certification.
Product Specifications
| Brand / Model | SIHOO M57 |
|---|---|
| Seat / Back Material | Mesh seat and mesh back |
| Seat Width / Depth | Approximately 20.1" / 18.1" |
| Seat Height | Approximately 18.1"–21.7" |
| Overall Height | Approximately 42.1"–48.2" |
| Base Footprint | Approximately 26" wide × 25.2" deep |
| Headrest Width / Height | Approximately 11.6" / 6.9" |
| Lumbar Adjustment | Height and depth |
|---|---|
| Armrests | 3D: height, forward/backward and pivot |
| Arm Height Above Seat | Approximately 6.3"–9.1" |
| Headrest Adjustment | Up to 3.9" height travel; 45° tilt |
| Recline | Up to 126°; tilt-tension adjustment |
| Weight Capacity | 330 lb, as listed by SIHOO |
| Assembly | Required; tools and instructions included |
Dimensions are approximate and taken from the supplied manufacturer diagrams. Seat height is not identified as a weighted measurement; mesh compression and measurement methods can affect the seated height.
Frequently Asked Questions
How does the M57 differ from the M18?
The M57 has a mesh seat and back with 3D armrests. The M18 pairs a mesh back with a cushioned seat and height-adjustable armrests. Choose based on seat feel and the adjustments you need. View the SIHOO M18 .
Does the M57 have a seat-depth slider?
SIHOO lists an approximately 18.1" seat depth; a seat-depth slider is not listed for this model. Check that you can sit against the backrest while leaving comfortable clearance behind your knees.
Can I use the chair without leaning against the headrest?
Yes. The headrest is most useful when leaning back. For upright desk work, adjust it so it does not push your head forward.
Can HPS help me evaluate fit before ordering?
Yes. Contact us with your height, desk height and chair preferences for guidance, or visit our Chicago showroom to compare chairs.
Assembly, Warranty & Delivery
Assembly: Assembly is required. Follow the supplied instructions and check all connections before use.
Warranty: SIHOO advertises a three-year manufacturer warranty. Contact HPS for applicable coverage and help with a warranty request.
Shipping: Free ground shipping within the contiguous 48 states. Local pickup and delivery/assembly options are available; contact us for arrangements.
Returns: HPS’s return policy applies to purchases through our store. Contact HPS or review the store’s current shipping and return policy before ordering.
Why Buy SIHOO from Healthy Posture Store?
Chicago Showroom
Compare chair fit, seat feel and adjustments in person, with guidance on pairing your chair with your desk.
Nationwide Support
Get help choosing before you order and support afterward from an ergonomic retailer serving customers since 2004.
Visit 2554 W. Lawrence Ave., Chicago, IL 60625, or call 773-596-5625.
SIHOO M57 Compact Ergonomic Mesh Office Chair
Compact Profile. Breathable Mesh. Adjustable Support.
The SIHOO M57 combines a mesh seat and back with adjustable lumbar support, a headrest and 3D armrests. Its slim profile makes it worth considering for a home office or smaller workspace.
Mesh Seat & Back Dual-Adjustable Lumbar 3D Armrests 126° Recline
A Slim Profile for Your Workspace
A streamlined backrest and open mesh design give the M57 a lighter appearance. The mesh seat offers a different feel from a foam cushion, so consider your preferred seat surface alongside the chair’s dimensions.
HPS Real-World Fit
Chair Fit and Desk Height Work Together
Based on our showroom experience, the M57’s compact, slim profile generally fits users 5'8" and under well. Height alone does not determine fit: check seat depth, clearance behind your knees, lumbar placement and headrest position.
The manufacturer’s supplied diagram lists a seat-height range of approximately 18.1"–21.7". Some shorter users will need a footrest even at the lowest setting.
HPS recommends a separate under-desk footrest when pairing this chair with a desk higher than 25". Set your chair height so you can reach the keyboard and mouse with relaxed shoulders, then support your feet if they do not rest comfortably on the floor. The footrest provides a stable surface without requiring you to lower the chair below your working height.
Adjustable Lower-Back Support
Move the lumbar support up or down and forward or backward to position it against your lower back. Adjust its height and depth while seated, aiming for comfortable contact rather than excessive pressure.
Adjustable Head Support
The headrest offers up to 3.9" of height adjustment and 45° of tilt, according to SIHOO. Position it to support your head comfortably when leaning back; its suitability depends on your torso height and sitting position.
Arm Support and Recline
3D Adjustable Armrests
Adjust the armrests in height, forward/backward position and pivot angle. Bring them into a position that supports your forearms while leaving your shoulders relaxed.
Recline up to 126°
Lean back for a break and use the tilt-tension control to adjust resistance to your body weight. Return to a supported working position when reaching for your keyboard and mouse.
Construction and Manufacturer Testing
The M57 has an aluminum alloy base and a manufacturer-listed 330 lb weight capacity. SIHOO lists BIFMA and SGS testing/certification claims for this model.
Manufacturer-supplied graphic. Logos may refer to different tests, materials or quality systems; they do not all represent whole-chair ergonomic certification.
Product Specifications
| Brand / Model | SIHOO M57 |
|---|---|
| Seat / Back Material | Mesh seat and mesh back |
| Seat Width / Depth | Approximately 20.1" / 18.1" |
| Seat Height | Approximately 18.1"–21.7" |
| Overall Height | Approximately 42.1"–48.2" |
| Base Footprint | Approximately 26" wide × 25.2" deep |
| Headrest Width / Height | Approximately 11.6" / 6.9" |
| Lumbar Adjustment | Height and depth |
|---|---|
| Armrests | 3D: height, forward/backward and pivot |
| Arm Height Above Seat | Approximately 6.3"–9.1" |
| Headrest Adjustment | Up to 3.9" height travel; 45° tilt |
| Recline | Up to 126°; tilt-tension adjustment |
| Weight Capacity | 330 lb, as listed by SIHOO |
| Assembly | Required; tools and instructions included |
Dimensions are approximate and taken from the supplied manufacturer diagrams. Seat height is not identified as a weighted measurement; mesh compression and measurement methods can affect the seated height.
Frequently Asked Questions
How does the M57 differ from the M18?
The M57 has a mesh seat and back with 3D armrests. The M18 pairs a mesh back with a cushioned seat and height-adjustable armrests. Choose based on seat feel and the adjustments you need. View the SIHOO M18 .
Does the M57 have a seat-depth slider?
SIHOO lists an approximately 18.1" seat depth; a seat-depth slider is not listed for this model. Check that you can sit against the backrest while leaving comfortable clearance behind your knees.
Can I use the chair without leaning against the headrest?
Yes. The headrest is most useful when leaning back. For upright desk work, adjust it so it does not push your head forward.
Can HPS help me evaluate fit before ordering?
Yes. Contact us with your height, desk height and chair preferences for guidance, or visit our Chicago showroom to compare chairs.
Assembly, Warranty & Delivery
Assembly: Assembly is required. Follow the supplied instructions and check all connections before use.
Warranty: SIHOO advertises a three-year manufacturer warranty. Contact HPS for applicable coverage and help with a warranty request.
Shipping: Free ground shipping within the contiguous 48 states. Local pickup and delivery/assembly options are available; contact us for arrangements.
Returns: HPS’s return policy applies to purchases through our store. Contact HPS or review the store’s current shipping and return policy before ordering.
Why Buy SIHOO from Healthy Posture Store?
Chicago Showroom
Compare chair fit, seat feel and adjustments in person, with guidance on pairing your chair with your desk.
Nationwide Support
Get help choosing before you order and support afterward from an ergonomic retailer serving customers since 2004.
Visit 2554 W. Lawrence Ave., Chicago, IL 60625, or call 773-596-5625.
SIHOO M57 Compact Ergonomic Mesh Office Chair
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