Limited O2 presale now open

O2 Ergonomic Chair

$500.00 $769.00 Save $269.00

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O2 · By Circ Design

O2 Ergonomic Chair

$500.00 $769.00 Save $269.00

Circ Design silhouette: a lighter residential form sized for compact rooms.
Linked support: back, lumbar, and recline work together as you shift.
Cotton-padded seat: a cotton-filled cushion pairs with a breathable Wintex mesh backrest for supportive everyday comfort.
Adjustable fit: 430–480 mm seat depth, 55 mm lumbar travel, and 2D arms tune to you.
130° recline: leans back smoothly without a bulky office-chair feel.
Straightforward assembly: a small set of major parts with included instructions.

Colour: Blue

Reserve window Closes Aug 6, 2026

Ships Sep 15, 2026

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Key material, adjustment, and fulfillment details are shown before checkout, with supporting documents added as the launch run is finalized.

K-Design Award

BIFMA

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How your reserve works.

Reserve today Now

Place your $10 refundable deposit to lock your colour and the founding price.

Presale closes

Aug 6, 2026

Ships

Sep 15, 2026

The $10 counts toward your price

It’s a deposit, not a fee — it comes straight off your final total.

Refundable, no questions

Get your $10 back anytime before your chair ships.

You choose when to pay

On launch day (Aug 6) we email you to complete payment — nothing is auto-charged.

Cancel anytime before it ships

Changed your mind, or we’re delayed? Wait it out or take a full refund.

$500.00 $769.00 Save $269.00

O2 at home

A lighter chair for the rooms you actually use.

O2 keeps ergonomic adjustment visible only where it helps, so bedrooms, shared desks, and quiet corners still feel calm.

Noah, Student & Writer

Scaled for bedrooms, studies, and shared rooms where a heavy office chair would take over.

O2 details

Lightness, with real adjustment.

Four parts of the O2 system that make the chair feel easier in smaller rooms.

O2 chair with open back support — **A wider way to sit** The frame, and the room it gives you.
Open back architecture
Room-first proportions

O2 linked support system — **Support that follows** Linked movement keeps contact through small posture shifts.
Up to 130° recline
Adaptive back contact

O2 adjustment controls — **Adjustment within reach** Seat, lumbar, and arms tune around your desk.
Seat-depth support
Adjustable lumbar

O2 cotton-padded seat detail — **Cotton-padded seat** A cotton-filled cushion adds soft support for everyday desk work.
Cotton-filled seat
Breathable mesh back

Linked recline

The mechanism keeps support moving with you.

Pressure-zone support

Soft-wrap areas and firmer zones share the load.

Seat and back linkage

Small posture shifts keep full contact.

Backrest mesh

The mesh back keeps airflow behind the user.

Premium Materials & Engineering

Built for durability, comfort, and everyday performance.

Wintex JRD+ mesh

Wintex mesh used on the O2 backrest

Abrasion: 100,000 cycles (ASTM D4966-12)
Composition: 64% elastomer · 28% nylon · 8% polyester
Weight / width: 492 g/YD · 66 in / 168 cm
Colorfastness: grade 4.5 · dry rub >= 4.5

Backrest mesh

Built for airflow and rebound at the back.

Hardware

The quiet parts you still feel.

The under-seat hardware, base, and castors carry the daily work without changing the room’s mood.

O2 seat-height adjustment detail — **Class-4 KGS® gas lift** Stable height control for daily adjustment.
100,000+ safety cycles
470–545 mm seat height

O2 nylon five-star base — **Nylon five-star base** A five-star nylon base supports O2 with a light visual footprint.
Nylon construction
680 mm diameter

O2 quiet castor detail — **PU quiet castors** Smooth, floor-conscious movement for home rooms.
Low-noise roll
Floor-safe contact

Awards & certifications

Award-winning design, certified build.

O2 is recognised by the K-Design Award 2025 and tested to ANSI/BIFMA standards for structural safety and durability.

**BIFMA compliant** Tested to ANSI/BIFMA structural safety & durability

Certification applies to the O2 production model.

O2 controls

Four adjustments, clearly shown.

The touch points you use most often, laid out as simple 16:9 details.

O2 adjustable arm support — **2D arm support** Arm pads lift and move forward or back to keep forearms relaxed.
90 mm up / down
40 mm forward / back

O2 seat height adjustment — **Seat-height range** Raise or lower O2 for the desk and the user.
470–545 mm seat height
Smooth height control

O2 linked recline adjustment — **Linked 130° recline** Move from focus to a soft lean-back without losing support.
Up to 130° recline
Linked back contact

O2 adjustable seat-depth control — **Adjustable seat depth** Slide the seat forward or back to match leg length and support changing postures.
430–480 mm seat depth
50 mm forward / back travel

Movement

Moves with you,not against you.

O2 uses linked back movement and adjustable contact points to stay with small posture changes through the day.

Up to 130° recline

Specifications

Sized for real rooms.

General

Product: O2 Ergonomic Chair
Model: GTO2MZ008
Designer: Circ Design, Adelaide + Shanghai
Finishes: Blue · Beige · Purple

Dimensions

Overall width: 660 mm
Seat depth: 430–480 mm
Seat height: 470–545 mm from floor
Back width: 455 mm
Five-star base: 680 mm diameter

Adjustment

Seat depth: 50 mm forward / back travel
Recline: Up to 130°
Lumbar: 55 mm up / down travel
Armrests: 2D · 90 mm up / down · 40 mm forward / back
Gas lift: Class-4 KGS® · 100,000+ safety cycles

Home fit

Recommended height: 150–185 cm
Recommended user weight: 60 kg and above
Maximum user weight: Below 130 kg
Seat material: Cotton
Five-star base: Nylon
Use case: Desk work, study rooms, and small home offices

Design credit

Designed byCirc Design.

Founded in 2021 by Eric Cross and Mugi Yamamoto, Circ Design works between Adelaide and Shanghai. Their process starts with the person sitting in the chair, then validates each idea through prototypes and full-scale models.

Where O2 belongs

Light enoughto stay out.

O2 is built for the desk that lives in a bedroom, guest room, studio, or shared living space. It keeps the adjustments you need, then softens the silhouette so the chair can stay visible after work.

Blue for clarity. Beige for warmth. Purple for a deeper accent.

Questions, answered plainly

Before you reserve.

Is the $10 O2 reservation refundable?

When will O2 ship?

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Which O2 colors will be available?

What adjustments does O2 include?

Who designed O2?

O2 Ergonomic Chair

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