Your cart

MasterForm First Class

Fully Adjustable Lumbar-Support Ergonomic Office Chair

$590.00 $489.99

The MasterForm First Class chair is a fully adjustable ergonomic office chair that is designed for lumbar support, back pain relief and posture improvement. With our Synchro Tilt breathable mesh back, firm foam seat and headrest for neck support, the Master maximizes comfort for your everyday needs from work to gaming.


  • Offers a customizable ergonomic design that is adjustable to your body, movement, and posture to provide an organic balance to your daily lifestyle.
  • Some premium customizable features include:
    • (Synchro Tilt) to lean back with comfort
    • Height adjustable lumbar support
    • Headrest height and tilt adjustment
    • (4D Armrests) to adjust the angle and height for your needs
  • Constructed with breathable and temperature-neutral engineered mesh is designed for added support to adjust and mould to the the human body, adapting to the body's movements
  • Provides provides pressure distribution and natural ergonomic alignment between the head, spine, hips and feet.
  • Designed to support the full weight of your back with additional support in the L4/L5 Lumbar region. 

Our MASTERFORM ergonomic office chairs include a 2-year warranty to any mechanical issues that arise from using the chair.

The below dimensions are an approximate only.


Color: Black
Back height: 72 cm
Back width: 50 cm
Seat depth: 52.5 cm
Seat width: 51 cm
Seat cushion thickness: 18.5 cm
Seat height range: 46cm to 53 cm
Armrest height: 66 cm to 73 cm
Tilt Range: 20°
Caster Wheel's Diameter: 6 cm
Number of caster wheels: 5 pieces
Weight Capacity: 350 lbs

Item Weight: 15.5 kg
Shipping dimensions: 69in x 27in x 64in

Customer Reviews

Based on 105 reviews
Chadwick Burnell
Horrible Warranty Process

My chair height sinks, the gas pump needs to be replaced and it's within warranty but trying to get a reply or get them to honour the warranty has been a hassle. Avoid Masterform and go with a different company.

Alexandra Brown
Not Happy With This Chair

I've had three months to try to get used to this chair, and I have to say I'm disappointed.

I am a 5'7" woman.

My biggest issue is with the lumbar support in the back. Try as I might, I could not adjust the height of it to my liking - even after snapping something in the track and injuring my thumb in the process, to be able to move it up/down in the first place. It does not adjust forward/back independently of the seat back - so you're either leaning back too far or it's digging in. There is no knob or lever to move it up/down; my thumb is still healing and the piece is still stabbing me painfully in the small of the back. The thing aims perfectly at the few inches somewhere between my tailbone and the waistband of my pants. I have also not been able to find a way to remove it without damaging the chair further.

The arm rests are super adjustable. They adjust easily up/down, out/in, and forward/backward. You can get them into exactly the position you want. Except that they don't stay there. The up/down has a locking lever, but beyond that the arm rests themselves are constantly slipping and sliding with my horizontal arm movements.

Then there's the height of it. I've just moved my office into another room where the desk height is about 2" higher than the old one because I've incorporated a portable elliptical exerciser under the desk and need the knee room. And to my surprise, the chair height will not rise any higher than 20". Not sure what the height of a typical chair is, but my feet are easily comfortably on the floor at that height. I can't imagine how someone 6' talI could find this comfortable. I am now looking at either a booster for the seat, or a new chair.

I love the mesh back and fabric seat - much cooler than the old leather chair I replaced. The wheels glide effortlessly - a little too easily, actually, as leaning on the desk perpetually pushes me back away from it.

For anyone who wears their hair in a ponytail at all, the headrest does lean back and forth. I push mine all the way back and out of the way. But it does not raise or lower to allow for a lump on the back of your head. Nor does it come off.

Overall, and especially given the cost of this chair, I am sincerely regretting this purchase.

Elaine Goyette

I am only 5’ tall, so the back support on the chair is in the middle of my back and the neck support is also too high. Nowhere did it mention the chair was suitable for people over a certain height, it says « fully adjustable ». On the other hand, it is very well made, good quality, cushion hard but getting used to it.

Great chair, amazing quality.

The chair is adjustable in so many ways and small details make a big difference. The concave arm rests are a wonderful touch. Highly recommended.

James Etienne
adjust seat depth

can we adjust the seat depth?