Description
KIFFO-02 Posto Ergonomic Office Chair
The Posto Ergonomic Office Chair features US Matrex Quantum 4.0 mesh, which has passed 50,000 abrasion tests, offering excellent breathability and durability. It boasts the world's first single-lever control chassis that integrates backrest height, recline tension, and tilt lock adjustments. The 5D armrests provide multi-directional adjustments for comprehensive support. The aluminum alloy back frame and swivel base ensure structural stability, while the Korean SHS gas lift and forward tilt function create a personalized and comfortable sitting experience.
US Matrex Quantum 4.0 Mesh
World's first single-lever control chassis
5D multi-directional adjustable armrest system
Aluminum alloy back frame and swivel base
Adjustable lumbar support tension
Korean SHS Class 3 Gas Lift
Product Dimensions: 660-700mm(W)×665mm(D)×1135-1300mm(H)
Seat Height: 453-543mm
Swivel Base: 665mm diameter
Mesh: Matrex Quantum 4.0
Gas Lift: Korean SHS
Product Features:
- US Matrex mesh Quantum 4.0, durable and never deforms
- Headrest height and angle adjustment
- Backrest recline tension adjustment
- Backrest tilt lock function
- Backrest height adjustment
- 2.0 exclusive adjustable lumbar support
- 5D armrests (armrest height, angle, front-back, width, and surface tilt adjustment)
- Seat depth and height adjustment
- Seat and backrest forward tilt adjustment
- Super chassis
- World's first single-lever control chassis, more convenient and easier to use
- Aluminum alloy back frame, reliable and durable
- Aluminum alloy swivel base
- Korean SHS Class 3 gas lift

The second-generation Ergohuman Elite series is now manufactured on a fully automated production line, resulting in improved quality and finish.
The Ergohuman Elite 2.0 is the flagship product of Ergohuman, featuring a floating recline linkage mechanism, 6-dimensional dual-control automatic flexible lumbar support, and 5D armrests, making it a luxurious, high-quality office chair.
It not only possesses all the functions of the Ergohuman Project 2.0 but also adds memory and segment dual-locking modes. Its fully polished aluminum alloy exterior highlights its intrinsic beauty, making it a design product that combines aesthetics and functionality. Through its 6Z dual-control flexible lumbar support design, it redefines the modern concept of healthy work.
The Ergohuman Elite 2.0 is a masterpiece of high-end ergonomic chairs. With 8D seating, it offers stronger support and a more comfortable sitting experience. Equipped with a super-floating recline linkage mechanism, it allows for seamless recline without lifting the feet, pushing the legs, or changing the position of the waist and headrest support, making it easy to get up.
Die-Cast Aluminum Frame
The die-cast aluminum frame provides strength and durability for heavy-duty applications. It is robust and durable, giving the chair a solid feel that will provide years of use.
New Flexible 5th Generation Mesh
The upgraded flexible mesh material offers improved softness, elasticity, and durability. The new mesh features 3 new integrated zones to distribute pressure, provide soft support, and enhance comfort to manage fatigue.
New Functional Polymer Composite Parts
Utilizing new high-tech functional polymer composite materials with lower chemical emissions, while being lighter and stronger.
Adjustable 5D Motion Armrest
Now, the front part of the armrest has an upward tilting function to support your forearms when using mobile devices. This is in addition to height, width, angle, and front-back adjustments.
Flexible Lumbar Support
The lumbar support features adjustable tension control, from soft to firm, according to your preference. The lumbar support remains flexible, providing lateral support that changes as you adjust your seating position.
Dynamic Back Tracking Function
The backrest can now be adjusted forward to support your back while typing or reading. This is ideal for those who prefer to work at their desk in a forward-leaning posture.
Unique Glass Fibre Chassis
The Glass Fibre chassis, with its unique eight-axis design, provides a more comfortable reclining experience. When reclining, it achieves a "no-lift feet, no-push legs, unchanging waist, smooth recline, and easy起身" motion, an industry-leading technology.
Adjustable Backrest Height
The backrest height is now more adjustable, with a 65mm adjustment range and 6 locking positions. This provides a greater range of locking positions to optimize use for different heights.
Features US-patented MATREX MESH nylon mesh, which is durable and resistant to deformation.
Matrex Mesh is one of the strongest and most durable meshes on the market, woven from strong, elastic polyester fibers to form a delicate and complex mesh structure. US Matrex nylon fiber mesh has a high-grade feel, with elasticity and adsorption properties. Each mesh opening has a very large area, which can improve heat dissipation efficiency. The mesh structure, using advanced American technology, greatly increases breathability and support elasticity.
MATREX MESH QUANTUM 4.0 vs QUANTUM 3.0
Quantum 4.0 elastomer has greater tensile strength and denser weave, resulting in better support and less deformation. Quantum 4.0 yarn has excellent elasticity, compensating for the stiffness caused by the high tensile strength of the elastomer. Overall seating feel, Quantum 4.0 is more elastic and has stronger rebound.
Quantum 4.0 mesh = T168 mesh, Quantum 3.0 mesh = W09 mesh
MATREX MESH QUANTUM 4.0 Specifications
Composition: 100% Polyester
Abrasion Resistance: Exceeds 50,000 abrasion cycles
Flame Retardancy: Complies with CA117- Section E (CS-191-53) standards
Lightfastness: Grade 5 (over 40 hours of light exposure)
Certification: Complies with BS 5852: e4 - Part 12.4 standards
Colorfastness to Rubbing: 4.5 in wet condition, 5 in dry condition.
















Product Dimensions:
Product Dimensions: 47-71.5cm(W) x 67.5cm(D) x 113.5-130cm(H)
Seat Height: 45.3-54.3cm
Swivel Base: 67.5cm diameter
Chair Load Capacity: 125 kg

























