Some links may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. See our Affiliate Disclosure Declaration for details.

Sidiz T80 ergonomic task chair review (classic and Marvel designs)

Compared to the Herman Miller Aeron, the Sidiz T80 has similar features but costs around 40% less. Made in South Korea, the T80 is geared towards esports pros and power users. Recently, Sidiz expanded this product line to include two official Marvel superhero editions. This Sidiz T80 review covers the specs and designs of all three chairs in the 2021 T80 collection.

Sidiz T80 gaming chair review
T80 chairs now come as a standard edition plus two Marvel superhero designs.

One of the problems with high-end ergonomic chairs is the price. Top models from Steelcase and Herman Miller both cost well over $1000.

Another problem for gamers is the drab, corporate styling. The Sidiz T80 solves both of those issues with a reasonable price and three unique designs.

About Sidiz

Headquartered in Pyeongtaek, South Korea, Sidiz has been designing office furniture since 2021. The T80 launched in east Asian markets in 2014. Since then, it has won several design awards in South Korea and Japan. In 2018, Korean esports team Gen G signed a deal to use the T80 as their official team chair.

Team Gen G using Sidiz T80 chairs
Team Gen G using Sidiz T80 chairs at their Seoul training center.

Soon after, Sidiz quietly began selling the T80 in western markets. In early 2019, famous streamer Dr Disrespect caused a buzz after he started using one. In this video, he raves about the chair:

In 2020, Sidiz began a strong marketing push for the T80 in American markets. The company now sells its products on Amazon.

Sidiz T80 on Amazon $552.50

Captain America edition $799.00 | Iron Man edition $799.00

Detailed Sidiz T80 review

The Sidiz T80 is a high-end, full-featured ergonomic task chair. Chairs with comparable features include the Herman Miller Aeron ($1395) and the Steelcase Leap ($1036).

Sidiz T80 review
The T80 is an ergonomic task chair with subtle but effective ergonomic features.

The T80 is a few hundred dollars cheaper than both. However, it only has a 3-year warranty, well short of the 12-year protection offered by the other two. Those differences aside, the T80’s features compare well to both the Aeron and Leap chairs.

Sidiz T80 chair features

The T80 has several impressive features. Here are some highlights:

Synchro-tilt and seat angle slope

The T80 has a seat that angles both up and down. With its synchronous-tilt (synchro-tilt) feature activated, the seat tilts up with a 1° range as the user reclines.

Sidiz T80 synchro-tilt feature

To support forward-learning work, you can manually tilt and lock the seat at a downward angle.

Adaptive mesh backrest and padded foam seat

On its South Korean website, Sidiz sells several variants of the T80. On Amazon, all models come with adaptive mesh backrests and fabric seats with foam padding.

Sidiz T80 mesh backrest
Models available on Amazon come with mesh backrests and padded fabric seats.

The mesh back provides ultimate breathability and comfort. When you sit, the mesh has an elastic quality that gives enough to take the shape of your body. The advanced breathability keeps the seat cool, even after long periods of sitting.

Sidiz T80 seat cover and padding

The seat cushion is replaceable. If yours wears out, you can contact Sidiz for a new one. It contains a layer of memory foam plus a highly elastic sponge.

Sidiz T80 review of the seat

Over the top is a breathable fabric cover. The whole unit provides firm resistance and cool comfort over long gaming or working sessions.

Summary of features

Sidiz T80 features
The Sidiz T80 packs in several impressive features.

Like other high-end task chairs, the T80 comes packed with impressive features.

  • Synchro-tilt: seat pan angle 1°; backrest 90° to 114°.
  • Spinal curve support: height adjustable lumbar; height and depth-adjustable padded headrest.
  • 3D armrests: adjust the arms in three directions. The range provides robust support for the shoulders and wrists.
  • Seat slide plus slope: slide the seat forward or back; manually slope down by -1°.
  • Premium Padding: resilient memory foam with a layer of antibacterial elastic sponge. This provides firm, dense, very comfortable support.
  • Warranty: three years, plus 30-day money-back-guarantee (details)

Sidiz T80 on Amazon $552.50

Captain America edition $799.00 | Iron Man edition $799.00


The Sidiz T80 has a compact seat. But with flat edges, it provides plenty of room for the legs.

Sidiz T80 review of the seat
The flat seat provides plenty of legroom.

  • Seat width x depth: 19.8″ (W) x 19.6″ (D)
  • Backrest width x height: 19.8″ (W) x 29.7″ (H)
  • Floor to seat range: 15.5-19.5″
  • Size rating: people 5’5″ to 6’6″ tall; up to 250 pounds

On paper, these dimensions look similar to typical gaming chairs for small people. But Dr. Disrespect is 6’8″ tall. Thus, even with smaller contact points on the seat and backrest, the T80 should fit most adult sizes.

Dr. Disrespect with Sidiz T80 task chair
Dr. Disrespect (6’8″) with his Sidiz T80 chair.

Thus, even with smaller contact points on the seat and backrest, the T80 should fit most adult sizes. Learn how sizing affects ergonomics in our this detailed tutorial:

FEATURE: Gaming chair sizing guide


Sidiz chairs come with a 3-year warranty and a 30-day money-back guarantee. For details, check out the Sidiz USA customer service page.

There, you will find a support link to Amazon’s seller messaging service. The page also contains an email address you can contact for pre-purchase questions.

T80 chair designs

There are four models in the 2021 Sidiz T80 collection. How to choose the best design for your needs? Colors in an environment influence both mood and behavior.

Sidiz T80 chairs different colors
L-R: Captain America chair; dark and light classic models; Iron Man chair. (click to expand)

Using color theory, we can divide different shades into a color spectrum to gauge the effects.

  • Warm colors: reflect more light, sending more information to the brain. Red is a high-wavelength color that is intense, active, and passion-inspiring.
  • Neutral colors: are achromatic (off the color spectrum). Black, grey, and white slow the heart rate and promote feelings of formal harmony.
  • Cool colors: foster a sense of calm, creative introspection. Blue is a low-wavelength color that recalls nature. It has a calming, serene effect. Studies show that it’s also the best color for fostering creative thinking.

This UBC study found that red and blue are the two shades that best improve brain performance. Red boosts performance on detail-oriented tasks like proofreading.

In comparison, for creative tasks like brainstorming, blue works better. In blue vs red environments, blue ones produced twice as many creative outputs as red ones.

Sidiz T80 classic edition

Amazon price: $552.50

There are two standard designs in the T80 collection. The T800HLDA Dark has a grey fabric seat and black components. The TN800HLDA Light uses a lighter shade of grey plus white components.

Sidiz T80 classic chair designs
T80 classic dark and light edition chairs.

In color psychology, grey is the only color without psychological properties. In contrast, black conveys power, coldness, intimidation, and control.

T80 chair color options
Choose the dark model for a more powerful dynamic or the light one for a more spacious feel.

If that’s too much for you, the white model is a softer option. Its white base adds contrast to the grey fabric. As well, many interior designers use the brightness of white to create a sense of space or add highlights to other colors.

Sidiz T80 (dark) on Amazon $552.50

The T80 TN800HLDA light edition is also available on Amazon for $699.00.

T80 Captain America edition

Amazon price: $799.00

The Captain America chair has a blue mesh backrest and PU leather padded seat. Complementing those parts are white armrest and backrest components and an aluminum base.

Sidiz T80 Captain America chair

Captain America’s mask appears on the headrest. His Vibranium shield is on the lumbar support and also woven into the mesh backrest.

Capt. America T80 on Amazon $799.00

T80 Iron man edition

Amazon price: $799.00

The Iron Man chair stands out with a dark red base, golden components, and a red chair base. If you can handle warm colors, this model is striking and intense.

Sidiz T80 Iron Man ergonomic chair

Iron Man’s mask appears on the headrest. His Arc Reactor is on the rear lumbar support and also in the red mesh backrest.

Iron Man T80 on Amazon $799.00

Who should buy a Sidiz T80?

Because of the cost, high-end ergonomic task chairs are often considered CEO chairs. These are pricey power seats that convey status.

But the Sidiz T80 is marketed at esports players. That makes the T80 an alternative to pro esports PC gaming chairs. For those willing to pay more than they would for a PC chair, there are a few benefits.

Sidiz T80 target market
The T80 is marketed as a high-end ergonomic chair for hard-core gamers.

The Sidiz T80 provides comparable features to the Herman Miller Embody (around $1500). Head-to-head, the Embody offers precise micro-adjustments in the backrest, but no neck support. The T80’s backrest is less precise but comes with adjustable neck support. All other features are similar — but the T80 is half the price.

Sidiz T80 seat adjustment options
Adjustments under the seat let you control the seat’s angle, depth and height.

As Dr. Disrespect and team Gen G showed the world, the T80 works great as a gaming chair. Those who spend long hours sitting while doing complex work can gain an edge with these chairs. They support good posture, which boosts vitality and improves work performance.

Sidiz T80 on Amazon $552.50

Check out other ergonomic chair models in the Sidiz USA Amazon store.

Sidiz T80 alternatives

Thinking of buying a T80 chair? Check out some comparable options to help you decide.

Sidiz T50

The original Sidiz task chair is cheaper and slightly lesser featured than the T80, but a lot more popular. Since its debut in 2013, this chair has won several design awards and sold over 1.6 million units.

Sidiz T50 ergonomic office chair review
The Sidiz T50 is a cheaper version of the T80 with slightly lesser features.

The T50 has similar features as the T80, minus the synchro-tilt. When you recline in a T50 chair, the seat remains flat. Feature highlights:

  • Backrest: recline and lock in five positions (90, 96, 103, 109, or 115 degrees).
  • Lumbar support: height and depth adjustable.
  • Headrest: height and depth-adjustable.
  • Seat: adjust height, depth, and seat slope.
  • Armrests: 3D adjustable

The T50 costs $358.58 on Amazon. Learn more in this detailed review:

Sidiz T50 chair review

Other high-end task chairs

If you want more luxury than what the Sidiz T80 offers. there are several models costing over $1000 to consider.

Best high-end ergonomic task chairs of 2021
These are some of the best high-end ergonomic task chairs in the world.

The top chair in this class is the Herman Miller Embody chair ($1635). It offers similar ergonomic features as the T80 chair, plus extras. Those include a 12-year warranty and the most adaptive seat bucket in the industry.

Embody chair shell and inner construction diagram
The Embody chair’s ‘Pixelated’ seat and backrest provides ultra-adaptivity to user movements.

Like the T80 chair, most models in this class also come with synchro-tilt functionality. But at the high end, you get a larger range of motion than what the Sidiz T80 offers.

Herman Miller Embody synchro-tilt range
The Embody chair comes with robust synchro-tilt functionality.

Check out other high-end alternatives to the T80 in this comparison review:

Best high-end task chairs ($650-$1650)


The Sidiz T80 brings high-end task chair seating to the masses. It is half the price of other premium models, yet with comparable functionality.

Sidiz T80 review conclusion

It’s extremely comfortable, very well built, and provides support healthy sitting support. If you want a truly high-end experience without paying over $1000, the T80 is one of the best models available.

Sidiz T80 (dark) on Amazon $552.50

Check out other ergonomic chair models in the Sidiz USA Amazon store.

Related Articles