ErgoFlex is an ergonomic office chair from Heka Interior built for active sitting – a way of sitting in which the body keeps making small, natural movements and adjustments while you work, instead of staying locked in one rigid posture all day. With its mesh backrest, adjustable headrest and dynamic support, ErgoFlex encourages the pelvis and spine to move, which relieves the back during long hours at a desk.
ErgoFlex is developed and manufactured by Heka Interior, the office-furniture brand of the Slovenian company Hit Preless d.o.o., which has produced furniture since 1986 and employs more than 80 people. With its own production, logistics and installation in Slovenia, Heka has equipped over 1,200 workstations at NLB, with references that also include Triglav and Volvo. You can try any chair free for seven days at your own workplace before you decide to buy.
What is active sitting?
Active sitting is a way of sitting in which the chair allows and encourages small, natural body movements rather than complete stillness. The backrest, seat and mechanism follow the user's movements, so the pelvis, spine and muscles stay gently engaged throughout the day. The goal is not constant fidgeting but avoiding the rigid, static posture that puts the most strain on the back during long hours at a computer.
Ergonomists recommend changing position regularly while you work and letting the chair follow your body. That is exactly the difference between active and passive sitting: a passive chair locks you into one posture, while an active chair encourages you to move naturally without losing support.
How does ErgoFlex enable active sitting?
ErgoFlex enables active sitting through a combination of a flexible mesh backrest, a moving tilt mechanism and adjustable support that follow the body. The backrest reclines with you, the headrest supports the neck in different positions, and the seat relieves the thighs. This lets you shift naturally while you work – forward, back and sideways – without losing support. The mesh backrest also lets air through and keeps your back from overheating.
- Flexible mesh backrest that follows the movement of the spine
- Adjustable headrest for neck and head support
- Dynamic tilt mechanism for movement while seated
All of these elements work together so the body does not have to stay still while you work. The chair responds to your movements instead of resisting them, which reduces pressure on the lower back and helps keep a better posture even after several hours of work.
Who is ErgoFlex best suited for?
ErgoFlex suits anyone who spends several hours a day at a desk, from a home office to professional work environments. It is especially helpful for people who sit eight hours or more a day and for those who feel tension in the back or neck by the end of the day. Thanks to its adjustable settings, it also works well for shared workstations used by people of different builds.
With its elegant, modern look, ErgoFlex fits neatly into both a home office and a representative business setting. That makes it a common choice for companies that want one consistent, health-friendly chair for the whole team without sacrificing the look of the space.
How does ErgoFlex differ from an ordinary office chair?
ErgoFlex differs from an ordinary office chair in that it encourages movement, not just sitting. An ordinary chair often fixes the body in one posture, while ErgoFlex uses a moving backrest, adjustable headrest and dynamic mechanism to allow constant micro-adjustment. Added value comes from the mesh backrest that ventilates the back and from full personalisation of colours and fabrics, which mass-produced chairs usually do not offer.
Which colours and combinations are available?
The frame, mesh backrest and headrest of ErgoFlex are available in black, blue, grey, green, beige and red. You can choose the colour of the backrest, seat and frame separately, which allows full adaptation to your space and style. Because the chairs are made to order, you can match the fabric, colour and configuration to existing furniture or to a company's visual identity.
For larger company orders we can also add the company logo to the chairs, which is popular when fitting out receptions, meeting rooms and open-plan offices. You can find the full range of office furniture to match the chairs under furniture.
How do you set up ErgoFlex correctly for healthy sitting?
For healthy sitting, first set the seat height so your feet are flat on the floor and your knees are at a right angle, then adjust the backrest and headrest to support your lower back and neck. Ergonomists recommend leaving the tilt mechanism unlocked so the chair follows your movements. We describe the full process in our guide on how to set up an office chair.
Does ErgoFlex support the lower back?
Yes, ErgoFlex supports the lower back with its shaped mesh backrest and encourages the spine's natural curve. The mesh structure adapts to the body's shape and spreads pressure instead of loading a single point. If you want extra lumbar support, see our overview of office chairs with lumbar support, where we explain what to look for.
Is ErgoFlex suitable for eight hours of sitting a day?
Yes, ErgoFlex is designed and tested for long daily use, including eight hours or more at a desk. The mesh backrest lets air through, while the dynamic mechanism encourages movement, which reduces the fatigue and stiffness that come from long static sitting. To choose the right model for your needs, see our guide on how to choose an ergonomic office chair.
Frequently asked questions
How much does ErgoFlex cost?
The price of ErgoFlex depends on the chosen configuration – fabric, colour combination and extra features – so we prepare it on request. Because every chair is made to order, we recommend contacting us with your preferences so we can prepare an exact quote. You can find current options and place an order on the ErgoFlex product page.
Can I try ErgoFlex before buying?
Yes, you can try ErgoFlex free for seven days at your own workplace. We deliver the chair to your address and you test it at your own pace in everyday use. If it is not for you, we collect it back at no cost. Book the free trial through our free trial page.
Where is ErgoFlex made and what is delivery like?
ErgoFlex is made in Slovenia at Hit Preless's own production in Medvode. Because the chairs are made to order, the usual lead time is a few weeks, and we deliver with our own fleet. Read more about the company and production on our about us page, and find the full seating range under office chairs.
Is ErgoFlex worth it for companies?
For companies, ErgoFlex is worth it because when fitting out many workstations they get a consistent, adjustable and health-friendly chair with personalisation and in-house installation. Heka has ergonomically equipped more than 1,200 workstations at NLB; we describe the experience in our NLB reference. Special terms are also available for architects on project work.
Try ErgoFlex for free
The easiest way to find out whether active sitting suits you is to try ErgoFlex in practice. Book a free 7-day trial, explore the options on the ErgoFlex product page, or contact us for advice and a quote through our contact page. We are happy to help you choose the right configuration for your workplace.
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