Desk One Ergo Flex v2 - Ergonomic Mesh Office Chair with Butterfly Lumbar and Flip-Up Armrests

Desk One Ergo Flex v2 - BIFMA Certified Ergonomic Task Chair with Butterfly Lumbar Support and Foldable Armrests

The Ergo Flex v2 is built around one idea: lumbar support that actually works. Its patented butterfly-shaped lumbar support — named for its distinctive wing profile — applies targeted pressure to the lower back at exactly the points where most office chairs fall short. Pair that with foldable armrests, a breathable mesh seat, and full BIFMA certification, and you have a task chair that punches well above its price point.

Butterfly-Shaped Lumbar Support

The Ergo Flex v2's defining feature is its butterfly lumbar insert — a dual-wing cushion that applies gentle, consistent pressure to the lumbar vertebrae from both sides simultaneously. Unlike a simple foam pad, the butterfly shape encourages the pelvis to tilt forward naturally, reducing the tendency to slouch and supporting the spine's natural S-curve throughout the day.

Foldable Flip Armrests

The armrests fold up and out of the way when not needed — useful when sliding under a desk, getting up frequently, or working with a narrow desk setup. Fold them back down for comfortable elbow support during typing or mouse use.

Breathable Mesh Back and Seat

Both the backrest and seat cushion use breathable mesh fabric — the seat cushion backed by resilient foam for lasting comfort, the back providing continuous airflow to prevent heat build-up during long sessions.

Precision Gas Lift Height Adjustment

A smooth, reliable gas lift adjusts seat height from 39cm to 49cm, with an overall chair height range of 98cm to 106cm. The 135kg weight capacity accommodates a wide range of body types.

Specifications

Features at a Glance

• BIFMA certified task chair
• Butterfly-shaped lumbar support for targeted lower back relief
• Foldable flip-up armrests — fold away when not needed
• Breathable mesh back and foam-backed mesh seat
• Seat height adjustable 39–49cm
• 135kg weight capacity
• Silent casters for quiet mobility
• Available in Triple Black or Grey
• 1 Year Warranty Included

Delivery Ships from our Brisbane (Willawong) warehouse.

Please note: Colours may vary slightly under different lighting conditions. Minor cosmetic marks on non-visible surfaces do not affect structural integrity or function.