The Flexispot ErgoX Max office chair delivers professional-grade comfort with its innovative 4D headrest system. This headrest adjusts independently across height, angle and depth dimensions to provide precise neck support during extended work sessions.
Built to accommodate users from 150cm to 210cm tall, the chair features five height adjustment levels and a curved one-piece backrest for complete spinal alignment. The adaptive lumbar support moves naturally with your body position.
Certified to support up to 300kg weight capacity, this chair combines durability with functionality. The 135° recline mechanism includes three-stage locking, whilst the breathable mesh construction and aluminium base ensure long-lasting performance and comfort.
The 4D headrest adjusts independently across four different dimensions - height, angle, depth and tilt. Standard headrests typically only adjust up and down. This multi-directional adjustment system allows the headrest to conform precisely to your neck's natural curve and sitting position. You can move it forward or backward, adjust the angle to match your preferred posture and set the height to support the base of your skull properly.
Most standard office chairs support between 100-150kg maximum weight. The ErgoX Max's 300kg capacity is officially certified and tested, making it suitable for heavy-duty use. This exceptional weight limit comes from the reinforced aluminium base, strengthened gas cylinder and robust frame construction. The higher capacity also means greater stability and longer lifespan even for users well below the maximum weight limit.
The lumbar support system combines both adaptive movement and manual adjustment capabilities. It automatically follows your spine's natural curve as you shift positions throughout the day. Additionally, you can manually adjust the lumbar support's position and intensity to match your specific lower back needs. This dual system ensures both dynamic support during movement and customised positioning for your individual spine shape.
The chair accommodates users from 150cm to 210cm tall through five distinct height adjustment levels. Each level provides approximately 12cm of height difference, allowing precise positioning for optimal ergonomics. The gas cylinder mechanism enables smooth height changes and the wide adjustment range ensures proper thigh support and desk alignment regardless of your stature or desk height.
The recline mechanism allows smooth backward movement up to 135 degrees with three distinct locking positions along the range. You can lock the chair at upright working position, moderate recline for relaxed tasks, or full 135-degree recline for breaks. The locking system engages securely at each position whilst still allowing natural micro-movements. The mechanism uses quality components that maintain smooth operation over thousands of adjustment cycles.
Assembly is required but the process is straightforward with clear step-by-step instructions included. All necessary tools are provided in the package, typically including hex keys and screws. Most users complete assembly in 30-45 minutes. The components are well-labelled and the instruction manual includes diagrams for each step. No additional tools or technical expertise are required beyond following the provided instructions.
The chair features quiet-rolling PU (polyurethane) wheels designed for smooth movement across various floor surfaces. These wheels work effectively on both hard floors like wood, tile, or laminate and on carpeted surfaces. The PU material reduces noise during movement and won't scratch or mark hard flooring. The five-wheel base configuration provides stable mobility whilst maintaining the chair's 300kg weight capacity.
The high-resilience mesh material is engineered to maintain its structural integrity and support properties through extended use. Unlike lower-quality mesh that can sag or stretch, this material returns to its original shape after each use. The mesh construction allows airflow whilst providing firm support for your back and body. The material is also resistant to wear, tearing and permanent deformation, ensuring consistent comfort and support throughout the chair's lifespan.
| Brand | Flexispot |
| Model Number | 840521529273 |
| ASIN | B0GF7ZP6C1 |
| Colour | Black With Footrest |
| Overall Dimensions | 72 x 75 x 142 cm |
| Item Depth | 72 cm |
| Item Width | 75 cm |
| Item Height | 142 cm |
| Seat Depth | 52 cm |
| Weight | 25 kg |
| Maximum Weight Capacity | 300 kg |
| Frame Material | Aluminium |
| Seat Material | Mesh |
| Filling Material | Foam |
| Metal Type | Metal |
| Back Style | Mesh |
| Back Style Name | Contemporary |
| Form Factor | High-Back Swivel |
| Arm Style | Rounded |
| Leg Style | Sled Base |
| Pattern | Solid |
| Item Shape | Rectangular |
| Height Adjustment Positions | 5 |
| Reclining Positions | 3 |
| Maximum Recline Angle | 135° |
| User Height Range | 150cm - 210cm |
| Assembly Required | Yes |
| Indoor/Outdoor Usage | Indoor |
| Age Range | Adult |
| Adjustable Height | Yes |
| Adjustable Lumbar Support | Yes |
| Head Support | Yes |
| 4D Headrest | Yes |
| Swivel Function | Yes |
| Footrest Included | Yes |