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SIHOO

SIHOO M57 Ergonomic Office Chair with 3 Way Armrests Lumbar Support and Adjustable Headrest High Back Tilt Function Light Grey, M57-M114

    • Based on 7,160 reviews
Condition: New
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Availability: In Stock.
Fulfilled by SIHOO
Arrives May 3 – May 8
Order within 12 hours and 12 minutes
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Color: Light Grey


Features

  • FeaturesSIHOO ergonomic chair with adjustable headrest can make neck tilt easily and comfortably, adjustable lumbar support bracket for free adjustment of height depth, 3D adjustable armrest for different office applications, 90-126 arbitrary backrest adjustment for multiple work positions, any switch 3.15 in lift, 360 Freedom to rotate freely 3D handrail.
  • Ergonomic designSIHOO ergonomic office chair is recommended by Ergonomics Application Association. SIHOO's ergonomic design is based on the human body dynamic digital model. The ridge backrest and the human spine are exactly the same. The close fitting helps release the spinal pressure. The flow waterfall arc seating design Thigh support is comfortable, SIHOO will make you more comfortable.
  • MaterialOur home office desk chair aluminum base is stable and durable, bearing quality is good. Silent casters move freely without noise. Double back frame design, stable and durable.
  • DesignSIHOO is the crystallization of the common wisdom of many professionals in human body, physiologist, product designer, mechanical engineer,does its best to make every step comfortable and safe for every customer. Every small part has strict safety quality testing. Cushion impact test, handrail fatigue test, chair foot static pressure test, in line with the strict standards of office chair.
  • WarrantyProduct warranty period is three years. If there is any quality problem, please contact us. After confirming, we will change the accessory for you. We promise to provide you with zero profit product accessories within three years of the warranty period.

Brand: SIHOO


Color: Light Grey


Product Dimensions: 30.31"D x 13.39"W x 25.59"H


Back Style: High Back


Special Feature: Adjustable,Durable


Brand: ‎SIHOO


Color: ‎Light Grey


Product Dimensions: ‎30.31"D x 13.39"W x 25.59"H


Back Style: ‎High Back


Special Feature: ‎Adjustable,Durable


Product Care Instructions: ‎Wipe Clean


Unit Count: ‎1.0 Count


Recommended Uses For Product: ‎Office


Pattern: ‎Solid


Age Range (Description): ‎3 years


Model Name: ‎M57-M114


Arm Style: ‎With arms


Surface Recommendation: ‎Hard Floor


Furniture base movement: ‎Swivel


Indoor/Outdoor Usage: ‎Indoor


Seat Height: ‎55 Centimeters


Seat Depth: ‎18.11 inches


Cushion Style: ‎Boxed Edge


Leg Style: ‎Tapered Leg


Arm Height: ‎30.31 Inches


Tilting: ‎Yes


Is Customizable: ‎Yes


Is Foldable: ‎Yes


Chair Backrest Width: ‎20.8 Inches


Form Factor: ‎360,Ergonomic,Tilt


Manufacturer: ‎SIHOO


Item Weight: ‎36.3 pounds


Item model number: ‎M102C


Material Type: ‎Mesh


Manufacturer Part Number: ‎M102C


Date First Available: March 12, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 3 – May 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Not suitable for Plus size people
Color: Black
Just got this chair today, assembly is very easy and the parts are very robust, most of this chair feels high quality except the plastic paddle on the lever that adjusts the height and locks & unlocks the reclining function and the headrest attaches to the back of the chair. That part is a bit cheap feeling but as long as you don't have someone jokingly pull the chair back by the headrest it shouldn't be a problem, but if some joker wants to pull on it to scare you, it could break eventually. As to the long term comfort, right now I can not attest to that yet. But what I can tell you is that this chair is not meant for very wide people with a very large rear-ends. The chair is narrow, I am a small guy 5'5" 150lbs and this chair is just the right size for me. THE HEADREST at its lowest setting and tilted all the way back is just the right place for it to rest just under the back of my skull and just above me shoulders just they way those U shaped travel neck pillows rest around you neck to give the back of your neck support when you are traveling. So if you are shorter, it wont rest there most likely. That's where I like it to be but you may differ, but what I can tell you is that if you don't rest it there it will force your head forward because it doesn't move back any farther, which I don't like. THE LUMBAR SUPPORT is okay, this chair allows you the screw it in as far as you like and for me its in the right place, but as far as it goes I've never had a chair with this so it takes some getting used to, but you an just unscrew it so you cant feel it, but I want to be in a proper ergo so I will just get used to it. THE ADJUSTABLE HEIGHT is good for me as a short guy many office chairs don't adjust low enough, and even though I can put my feet flat on the ground for most of them, the weight of the backs of my legs are entirely being held by the chairs seat instead of letting me reduce pressure on the back of my legs with my feet allowing my knees to be at an 80 degree angle instead of a hard 90 degree angle putting unneeded pressure on my hamstrings. I am using it while writing this review and it is currently at the lowest setting and it is perfect for me, so if you are shorter then me take that into account. As well be careful with the lever that adjusts the height because it is one of the only things that I can see breaking if you are not mindful. THE BACK REST is very comfortable because for me at least it has a high back and is just broad enough in the shoulders and for a small guy I have broad shoulders. I have a different mesh chair with a short back and the metal frame that holds the mesh on that chair constantly digs into my back and I cant bare sitting in it for very long but it was free so beggars cant be choosers. There is nothing able to do that on this chair for my body size and I appreciate that very much. THE SEAT is fully mesh with a cushion under the knees and seems to be comfortable as of right now, as I said long term comfort is still to be decided. But at first feel, I can say as long as you keep your legs facing forward I don't foresee a problem. But when I decided to buy a fully mesh chair I realized one of my favorite ways to sit will no longer be possible. I like to Spread my legs and have my right leg off the side of the chair instead of the front. With mesh chairs, because of their nature, they are elevated on the sides similar to a bucket seat chair, but there are no cushions so it will surely cut off circulation so this is a no go. This is something I knew going into this purchase and decided it was worth a try and I can just get used to it. Another position I like is to sit in my chair cross legged. This is still possible but not the most comfortable because the bucket shape isn't as comfortable for my feet. The comfort of the seat is probably the most important part of this chair for me. I will be sitting in it every day for very long periods of time and I need something that wont fatigue my butt, tailbone and the back of my legs, if this mesh seat creates pressure points and I begin to get sore, I will try and update this review, and I will probably return the chair and look for a regular cushion chair or buy the regular cushion style of this chair because they make one with a plush cushion as well. Hope this cleared something up for some of you. ... show more
Reviewed in the United States on November 13, 2020 by PeepoHappy
    • Firm Seat Bottom, Fits My 5'7" Frame Perfectly
Color: Black
Writing this just after assembly and first use, so I'm giving first impressions. Bear in mind I am writing this from the perspective of a 5'7", 145-pound person. 1. Very easy to assemble with included tool and minimal, but understandable instructions. 2. The included screws have Loc-Tite semi-hold glue on them to prevent slippage after fastening. This glue allows the screws to be loosened and re-tightened if adjustments are needed later. 3. The lumbar support position is good for my short frame. There is no vertical adjustment for the lumbar support. 4. The lumbar in-out adjustment works well and the support feels good. 5. The seat material is stiff nylon. It feels very firm, maybe a bit firmer than I'd prefer and certainly firmer than a previous mesh office chair I've owned. I'm hoping the seat material will loosen up a bit over time. The material feels fine through clothing. The mesh weave provides good traction to keep me from sliding forward as I sit. 6. The armrests have a flat profile. I'd prefer armrests that curve slightly downward at the front but this is not critical. They also pivot horizontally and adjust vertically. This let's you position them to support your arms correctly while typing. The armrests pads are barely cushioned. This may prove uncomfortable over time, though I haven't tested them long enough to be certain. 7. The head rest's up-down adjustment works by snapping into position in 3/4-inch increments with a vertical adjustment range of approximately 5 inches. Further refinement of the head rest's position is done by pivoting it up or down. I was able to position the head rest exactly where I wanted it. 8. The reclining tensioner works well. 9. The seat height adjustment works well. When bottomed out, my feet can rest flat on the floor, and I am short-legged. 10. The seat depth is just right for my short frame. The backs of my knees are well clear of the front edge of the seat. Overall, very pleased with this chair's fit, adjustments, and appearance. The firmness of the seat bottom is definitely good for maintaining proper posture, but it may be a little too firm for long-term comfort. I'm hoping it will stretch and give a bit over time. I'll update this review if firmness versus comfort becomes an issue. Update: 3 1/2 months after original review. Since purchase, the seat bottom has stretched and relaxed a bit. While still firm, it gives enough to be more comfortable than it was straight out of the box. Overall, a very good chair. ... show more
Reviewed in the United States on December 14, 2021 by Jaundiced Eye
    • Great for the price with solid construction and nice features
Color: Light Grey
This chair is exactly what I was looking for: something reasonably sturdy and comfortable that looks nice in my home and isn't absurdly expensive. I've had it for about six months and I use it on all my WFH days and in the evenings when I log back on (tragic). It's a little creaky and I find myself needing to stand up walk around because my butt hurts after a long period of sitting, but there are a lot of things I like about it. I love that I can lock it in a straight sitting position for working and then easily pull the little lever and lounge all the way back if I'm on a long call or taking a break. The head rest is especially great when you lean back in the chair and I find myself sitting at my desk, leaning back in this chair, when I catch up with friends or scroll on my phone. I also love the way the arm rests adjust. You can adjust the armrests up and down like most chairs but also forward and back and pointing in toward yourself or out, depending on where your elbows hit. It was relatively easy to put together and each piece felt very solid. I expect this chair to last many years. ... show more
Reviewed in the United States on July 11, 2024 by Abigail S.

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