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

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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 actu ally 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 Overall Height 98cm – 106cm Seat Height 39cm – 49cm Seat Width 46cm Seat Depth 60cm Overall Width 63cm Backrest Width 60cm Back Height 67cm Armrest Height 64cm – 74cm Weight Limit 135kg Colour Triple Black / Grey Back Material Breathable Mesh Seat Material Mesh Fabric + Resilient Foam Lumbar Support Butterfly-Shaped Insert Armrests Foldable Flip-Up Wheels Silent Casters Certification BIFMA Certified Warranty 1 Year 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. Show more