Heka Interior — active ergonomic chair
ErgoFlex
With the active ergonomic office chair ErgoFlex, create an optimal working environment, ensure correct sitting posture, and maintain spinal health. -What's more, the ErgoFlex office chair offers you the experience of "two chairs in one".
The ErgoFlex office chair features a special synchron mechanism, equipped with the Motion Balance function, which allows the seat and backrest to move in all directions (4D - 360º). The movement function (active sitting) can also be blocked or locked, and the chair can then be used as a classic office chair with a synchron mechanism.
Povpraševanje za podjetja
Pripravljamo posebne pogoje za večje naročila. Pustite nam vaše podatke in vrnemo se vam v najkrajšem možnem času.
- Fabric:
- Nordic Schwarz 132
- Rahmenfarbe:
- Sandblasted bež
- 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, padded, and ergonomically designed seat
- Adjustable seat depth
- 4D adjustable armrests
- Aluminum five-star base
- Rubberized casters ø65mm
- Breathable mesh backrest
- Height-adjustable headrest
- Lumbar support
- Special synchronous mechanism with Motion Balance function (4D - 360°)
- Option to lock the active movement into a static position
Dimensions & Technical Specifications
Seat height: ___ cm (adjustable)
Seat width: ___ cm
Seat depth: ___ cm (adjustable)
Backrest height: ___ cm
Caster diameter: 65 mm
Weight: ___ kg
Maximum load: ___ kg
Precise specifications are in the attached technical sheet (PDF) below. Image with dimensions: ErgoFlex dimensions.
Materials & Fabrics
Seat: upholstered in Bora Plain or Fidivi One fabric
Backrest: breathable mesh in five colors — sand beige, petrol blue, olive green, brick red, black
Base: aluminum five-star or polycarbonate
Casters: ø65 mm rubberized, suitable for hard floors
Available fabric colors: Bora Plain (64, 67, 33, 02, 38) and Fidivi One (2519, 8032, 7521, 4028, 8033). You can view all samples in our material library.
Mechanism & Adjustments
Synchron mechanism with Motion Balance function — the seat and backrest move in all directions (4D - 360°). The active movement function can be locked as desired, turning the chair into a classic, stable support.
Adjustments:
- Seat height
- Seat depth
- Lumbar support
- 4D armrests — height, width, depth, angle
- Headrest — height
- Dynamic mechanism lock
Delivery, Installation & Returns
Manufacturing and delivery: 4-6 weeks (made-to-order product, in-house production in Medvode)
EU delivery: 4-7 weeks
Free 7-day trial in your workspace. If the chair isn't the right fit, we will collect it free of charge.
14-day returns in accordance with the law.
For Businesses & Architects
Volume discounts: for 5+ units
Custom configuration: combinations of mesh and fabric colors from your palette, 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?
The ErgoFlex features independently adjustable elements: seat height, seat depth, lumbar support, 4D armrests, and a height-adjustable headrest. The 4D Motion Balance mechanism adapts to various body types and sitting styles. The precise adjustment range and maximum load capacity are detailed in the technical sheet (PDF) above. For a personalized consultation regarding suitability, please 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.