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MUXX.STIL Office Chair, Ergonomic Desk Chair with Adjustable Lumbar Support and Flip up Armrest, Breathable Mesh Computer Chair for Home Office, Khaki
MUXX.STIL

MUXX.STIL Office Chair

Bottom line: The MUXX.STIL Office Chair: Adjustable sponge-filled lumbar cushion, not a fixed molded bump; main trade-off: 264 lb capacity rules out heavier users.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ Adjustable sponge-filled lumbar cushion, not a fixed molded bump
  • ✓ Armrests flip up 90 degrees so the chair slides fully under a desk
  • ✓ 15-year warranty, far longer than the typical 1-3 year task chair term
  • ✓ Waterfall seat edge plus high-density U-shaped foam eases thigh pressure

Cons

  • ✗ 264 lb capacity rules out heavier users
  • ✗ Armrests flip but do not adjust for height, width, or depth
  • ✗ Only 3.74 inches of seat height travel limits very tall or short users
  • ✗ No headrest, so upper-neck support is missing on recline

Manufacturer description

The MUXX.STIL Office Chair is a mesh task chair built around adjustable lumbar support, and that cushion is the reason most buyers pick it. The sponge-filled lumbar pad moves to meet your lower back, while the S-shaped backrest follows your spine to cut pressure through long work sessions. Armrests flip up a full 90 degrees, so you can push the chair fully under a desk in a small home office or bedroom setup. The seat uses high-density foam in a U-shaped contour with a waterfall front edge that keeps pressure off the backs of your thighs, and the nylon mesh back breathes instead of trapping…

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SpecPicks Verdict

SpecPicks scored MUXX.STIL Office Chair using a rating × review-volume × price-fit model applied to published specs and reviews across the home & kitchen category. MUXX.STIL's home & kitchen lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for home & kitchen of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Does the MUXX.STIL office chair have adjustable lumbar support?

Yes. It has a large adjustable lumbar cushion filled with thick sponge that you position against your lower back, paired with an S-shaped ergonomic backrest that follows the curve of your spine.

What is the weight limit on this chair?

The maximum capacity is 264 lbs. If you are near or above that figure, choose a big-and-tall rated chair instead.

Can the armrests be moved out of the way?

The armrests flip up 90 degrees, which lets you slide the chair completely under a desk when you are not using it. They are contoured and padded but do not adjust for height or width.

How long does assembly take?

MUXX.STIL lists 15-20 minutes using the included instruction manual, assembly video, and tools. No extra hardware is needed.

What warranty comes with the MUXX.STIL chair?

All MUXX.STIL task chairs ship with a 15-year warranty. Check the product listing for current terms and how to file a claim.

Key Features

  • 【Enhanced Lumbar Support】This office chair features a large and adjustable lumbar support cushion filled with thick sponge to cradle your lower back and help you maintain a comfortable posture for long hours of work. It also has an S-shaped ergonomic backrest that aligns with your spine and reduces pressure and muscle fatigue.
  • 【Space Saving】The armrests of this desk chair can be flipped up 90° to fit different needs and save space. You can slide the chair under the desk when not in use. The armrests are contoured to match your arms’ shape and have soft padding to protect your wrists and elbows. The computer chair can be adjusted in height by 3.74 inches and swivel 360° for convenience.
  • 【Versatile Use】The rubber mute wheels of this mesh chair roll smoothly and quietly without scratching your wooden floor. You can also recline the chair by pulling out the lever and enjoy a relaxing break from work. This chair is suitable for various settings, such as office, living room, study room, meeting room, etc.
  • 【Comfortable & Safe】Muxx.Stil ergonomic office chair has a U-shaped seat cushion filled with high-density foam that conforms to your body and relieves pressure on your thighs and hips. The seat also has a waterfall edge design that promotes blood circulation in your legs. The breathable nylon mesh material allows air circulation and keeps you cool all day long. Max capacity: 264 lbs.
  • 【Easy To Assemble & 15-year Warranty】You can easily set up this mesh chair in 15-20 minutes with the provided instruction manual, video, and tools. All task chairs come with a 15-year warranty, so please feel free to contact us if you have any questions or issues. We will provide you with effective assistance.

Full Specifications

Size25.6 x 20.5 x 38.2 inches
BrandMUXX.STIL
ColorKhaki
ShapeRectangular
ThemeContemporary
PatternSolid
MaterialPolyethylene
Arm StyleWith arms
Leg StyleTapered Leg
Room TypeBedroom, Drawing Room, Dressing Room, Office, Study Room
Back StyleSolid Back
Item Depth20.5 inches
Model NameUMB01KH01
Seat Depth20.1 inches
Style NameModern
Unit Count1 Count
Form FactorUpholstered
Seat Height21.6 inches
Seat Length19.7 inches
Model NumberUMB01KH01
Full listing titleMUXX.STIL Office Chair, Ergonomic Desk Chair with Adjustable Lumbar Support and Flip up Armrest, Breathable Mesh Computer Chair for Home Office, Khaki

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MUXX.STIL Office Chair, Ergonomic Desk Chair with Adjustable Lumbar Support and Flip up Armrest, Breathable Mesh Computer Chair for Home Office, Khaki is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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MUXX.STIL Office Chair, Ergonomic Desk Chair with Adjustable Lumbar Support and Flip up Armrest, Breathable Mesh Computer Chair for Home Office, Khaki
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