Heka Interior — active ergonomic chair
ErgoFlex
With the ErgoFlex active ergonomic office chair you create an optimal working environment, ensure a correct sitting posture and maintain a healthy spine. What is more — the ErgoFlex office chair offers you the experience of "two chairs in one".
The ErgoFlex office chair features a special synchro mechanism with a Motion Balance function that allows the seat and backrest to move in all directions (4D - 360º). The movement (active sitting) function can also be blocked or locked, so the chair can be used as a classic office chair with a synchro mechanism.
Quick and easy installment payments
Business inquiry
We arrange special terms for larger orders. Leave us your details and we will get back to you as soon as possible.
- Fabric:
- Nordic Black 132
- Frame color:
- Sandblasted beige
- Base:
- Polycarbonate base
Perfect Pairing
7-day free trial at your workplace
Custom-made — produced in Slovenia
3-year warranty
Made in Slovenia, in Medvode
Technical data ErgoFlex
Key Features
- Comfortable, upholstered and ergonomically shaped seat
- Adjustable seat depth
- Armrests
- Five-star ALU base
- Rubber-coated castors ø65 mm
- Breathable mesh backrest
- Height-adjustable headrest
- Lumbar support
- Special synchro mechanism with Motion Balance function (4D - 360°)
- Active movement can be locked in a static position
Dimensions & Technical Specifications
We will gladly provide the exact dimensions (height, width, depth, seat height and weight capacity) depending on the chosen version.
Write to sales@heka-interior.com or call +386 1 361 90 28 — we can also advise you on choosing the right size for your space.
Materials & Fabrics
Seat: upholstered in Nordic fabric. Available in five colours: Nordic Black 132, Nordic Grey 117, Nordic Grey 115, Nordic Brown 127 and Nordic Blue 909.
Backrest: breathable mesh (ventilated mesh version).
Frame colour: sandblasted beige, petrol blue, olive green, brick red, black.
Base: five-star aluminium base or polycarbonate base.
Castors: rubberised, ø65 mm, suitable for hard floors.
For more information about the materials, write to us at sales@heka-interior.com.
Mechanism & Adjustments
Synchro mechanism with Motion Balance function — the seat and backrest move in all directions (4D - 360°). Lock the active-movement function whenever you wish and the chair becomes a classic firm support.
Adjustments:
- Seat height
- Seat depth
- Lumbar support
- Headrest — height adjustable
- Movement mechanism lock
Delivery, Installation & Returns
Manufacture: a custom-made product, our own production in Medvode.
Free 7-day trial in your workspace. If the chair doesn't suit you, we collect it free of charge.
14-day return in accordance with the law.
For Businesses & Architects
Volume discounts: from 5 units
Custom configuration: choice of five Nordic fabric colours and five frame colours, logo on the backrest
Heka references: NLB Emona BTC (1,200 workstations), Triglav, Volvo
CAD/DWG files for 3D models and floor plans
Chair showroom: Medvode
Project contact: sales@heka-interior.com
B2B SERVICES
For Architects & Project Planners
Comprehensive service from concept to delivery. ErgoFlex is the standard choice for corporate offices, where employees alternate between focused work and meetings.
CAD / BIM Files
All technical files (DWG) for your 3D models and office floor plans.
Personal Consultation
Our team of technologists and project managers will arrange a meeting with you. Free consultation for 50+ workstations.
Visit Our Showroom
Chair showroom in Medvodah — try all the chairs in person.
Volume Discounts
For 5+ units. For 200+ workstations, special offers and custom branding.
Documentation Downloads
All the technical data you need for office planning or a purchase decision.
ErgoFlex Technical Data Sheet
Dimensions, materials, mechanism, and certificates in PDF format.
TRUSTED BY
Our products in leading Slovenian and European companies
Heka chairs are used in 1,200 workplaces at NLB Emona BTC, meeting rooms at Triglav, Volvo service centers, and Marriott and Radisson hotel rooms across Europe.
Years of Slovenian tradition
Slovenian and European partners
Years of warranty
Days of free trial
Frequently Asked Questions
How does ErgoFlex differ from other ergonomic chairs?
ErgoFlex features a Motion Balance synchronous mechanism that moves the seat and backrest in all directions — 360° of active movement that you can lock in place. Classic ergonomic chairs have a single fixed geometry. ErgoFlex is two chairs in one: an active chair that encourages micro-movements, and a stable support for when you need to focus. The breathable mesh backrest provides comfort even during 8+ hours of sitting, while the lumbar support and adjustable headrest relieve strain on the spine and neck.
How does the 7-day free trial work?
We deliver the chair to your address (office or home). Test it for 7 days in your actual work environment. If it's not a perfect fit, we will collect it at no cost. If you're satisfied, you keep it and pay. No risk, no questions asked.
Can I customize ErgoFlex?
Yes. The backrest mesh is available in five colors (sand beige, petrol blue, olive green, brick red, black), and the seat in two fabric collections (Bora Plain and Fidivi One). You can choose between an aluminum five-star or a polycarbonate base. For larger projects (5+ pieces), we offer custom configurations: corporate colors, additional fabrics, and a logo on the backrest. You can view all samples in our material library.
What's the warranty on ErgoFlex?
The 3-year manufacturer's warranty covers the mechanism, gas lift, and material defects. With our in-house production in Medvode, we provide spare parts even after the warranty expires.
Do you offer discounts for larger quantities or projects?
Yes. Quantity discounts start from 5 pieces. For 200+ workplaces (e.g., NLB Emona — 1,200 workplaces), we prepare a special offer with custom configuration, free consultation, and an extended warranty. Send an inquiry or call +386 1 361 90 28.
Does ErgoFlex suit tall or shorter people?
ErgoFlex has independently adjustable elements: seat height, seat depth, lumbar support and a height-adjustable headrest. The Motion Balance mechanism adapts to different body types and sitting styles. The exact adjustment range and maximum load are stated in the technical data sheet (PDF) above. For individual advice on suitability, call +386 1 361 90 28.
Didn't find your answer?
Write to us at sales@heka-interior.com — we respond within 24 hours. For urgent projects, call +386 1 361 90 28.
Why buy from Heka
Heka Interior is more than a chair manufacturer — we are a long-term partner for your office.
7-day free trial
We deliver the chair to your address. You have 7 days to try it in your actual work environment. If it's not for you, we'll pick it up at no cost.
Slovenian in-house production
Every Heka chair is made in Medvode. Our in-house manufacturing ensures service and spare parts are available even after the warranty expires.
3-year warranty
Premium materials and in-house quality control before every shipment. Local support in Slovenian.