The Z Chair is designed for ALL.

It is ideal for desk/office use but will also work really well as a dining chair or a chair for everyday use.

No matter what you are doing, or where you are doing it, if you are sitting, the Z Chair will help you sit better.

Sitting on the Z Chair’s gently sloping seat will effortlessly promote a naturally good posture. This sitting position helps maintain healthy and natural spinal curves.

The Z Chair is designed so that you don’t need a back support.

In the angled/sloped sitting position your pelvis and spine will remain closer to a natural standing position, so you will find yourself naturally sitting up straighter without the need for back support.

We call this ‘active sitting’ – your body’s spinal, postural muscles are activated (just like when you are standing).

In fact, slouching on The Z Chair is deliberately not easy and if you feel you need a break then it’s time to take a break, stand up and move. (See breaks below).

A wise Osteopath once said, “give the body a crutch and it will lean on it”.

With healthy active ‘core’ muscles and good spinal posture you don’t need arms rest to lean on and you will naturally sit straight.

No matter how well we sit, our spinal joints and muscles need to move regularly to stay healthy. Movement is health.

Whenever you sit and whatever you sit on, we recommend taking ‘micro breaks’ (a 30-60 second break) every 20-30 minutes.
Stand up, stretch and move. Micro breaks give your body, eyes and brain a rest. It gets the blood circulating through the body and joints moving.

Research studies have shown that micro-breaks can also make you more productive. Click Here

Sitting on the Z Chair promotes a natural, upright position. This healthy posture will help prevent against spinal and low back conditions. The Z Chair will also encourage core muscle activity keeping your postural muscles fit.

The Z Chair will accommodate people of varying heights. It is designed so that no adjustment is necessary. Users will naturally find a comfortable position on the seat whatever their height.

The sloping seat allows users of different height to sit comfortably on the Z Chair.

It works best with people between 5’2” and 6’2” (1.58m and 1.89m) in height. How? The taller you are the further back on the seat you will need to sit. Conversely, if you are shorter you will sit towards the front. You will naturally find a comfortable position.

Through our research and development, we found that although adjustability can be useful, in practice chairs are rarely adjusted to the correct height for the individual, and can often do more harm than good.

What if I’m very tall or very short? If you are not within these optimal height range you will still gain benefit from the chair, but the effect may be reduced slightly. However, please contact us info@sitstraight.co.uk, as we are developing chairs for all heights, including children.

Most chairs have a horizontal seat part that we sit on. When we sit the position of the pelvis changes (rolls backwards) and the natural spinal curves are reduced or even disappear.

Our postural ‘core’ muscles fatigue and we slowly slouch backwards. This loads our spine and discs in a detrimental way. This is a major cause of back pain, disc injury, and disablement.

The Z Chair has a precisely designed angled, forward-sloping seat.

When you sit on The Z Chair, your thighs will slope slightly downwards, and your knees will be lower than your hips.

This precise design helps your pelvis stay in a more natural position and encourages the spine to maintain its natural healthy curves. Better posture equals better health and less pain.

The Z Chair position also helps to engage your postural ‘core’ muscles (in what we call ‘active sitting’) which encourages better spinal health and posture.

Most conventional seating does not naturally and effortlessly encourage good overall posture.

They instead provide ever-increasing levels of support and comfort, which in turn weakens core strength, compromises posture, and can cause chronic back problems over time.

In reality, we need to sit actively. We need to sit straight. We need to sit with back health in mind.

Conventional chairs are often big, bulky, and in many cases impractical for the working environment (especially for an increasing number of post-Covid homeworkers).

Chairs marketed as ergonomic rely on the user to adjust correctly. Poorly adjusted chairs often makes them un-ergonomic and can lead to significant back health issues.

The durability of conventional seating is often poor, parts break, and many end up in landfill sites.

Conventional seating is often bad for the environment. The Carbon footprint of the average office chair is estimated to be 70-75kg CO2E (Link needed).

Cheaper chairs fail us on the above points, while ergonomic seating is often exclusively priced and out of reach for many consumers.

Absolutely! For some, sitting on The Z Chair may mean they are sitting slightly higher.

To maximize the benefits of The Z Chair you may need to look at your desk or screen height.

For laptop users you should use a laptop stand and use a separate mouse and keyboard. We have produced a set up and desk solution help guide: Click Here

The specifically designed angled seat of the Z Chair puts your pelvis in a natural forward rotated position. This is closer to its position when we stand. This encourages our spine to maintain its natural curves (as if we were standing).

The result is a much more ergonomic and natural sitting position. This position requires far less effort to maintain and is far better for spinal health. It also helps us to engage our spinal ‘core’ muscles.

The Z Chair encourages users to naturally and effortlessly maintain a healthy and natural spinal curve.

It also helps the ‘core muscles’ to stay ‘engaged’. These muscles are your supportive, stabilising muscles around the spine. Keeping them fit, well-conditioned and ‘engaged’ protects the back and massively reduces the likelihood of back injury.

When we slouch large compressive loads put adverse strain on the lower spine and can contribute to strains and injuries (such as slipped discs).

When standing our natural spinal curves dissipate these forces efficiently in a healthy way, so not to damage the spine. The Z Chair helps maintain these natural spinal curves and discourages slouching.

Always sit with your legs sloping downwards so that your knees are below your hips.

For some users sitting on the Z Chair will mean that you sit slightly taller and higher.

This may mean your desk height or screen height is then slightly lower than optimal.

To gain maximal benefit from the Z Chair you may need to adjust your desk or screen height. Please read the desk height adjustment document for help and advice: Click Here

Most users will immediately find the Z Chair comfortable and feel the postural benefits straight away.

For some, the change in posture can initially be a little unusual and take some adjustment. This is because the body and spine will need to get use to a new (improved) posture.

If you do feel some discomfort at first, then use the Z Chair little and often until your body adapts to the new position.

Yes! Sustainability and lowering our carbon footprint is at the heart of the Sit Straight ethos.

Our aim is to minimise waste and produce a chair that is not only great for you but also good for the planet.

Did you know the average back supporting office chair has a CO2 footprint of 72kg?  With its carefully selected FSC certified wood, the Z Chair has a CO2 footprint of 5.6kg, a reduction of 92%! 

Whilst we are proud of our sustainability credentials, we know we can do better, which is why at Sit Straight we continue to work on making our products ever kinder on the environment.

The Z Chair has a simple design with dowels and bolts and can be assembled in 5-10 mins. You will need a 4mm Allen key (included in the box). Here’s our assembly instructions: Click Here

The main body of the Z Chair is made from sustainably sourced European FSC Poplar plywood.

The Z Chair is proudly manufactured in the UK.

The cushion cover is made from recycled polyester. The Oceanic range of cushions are made using recycled sea plastic. Sit Straight is a proud supporter of the SEAQUAL initiative, recovering and reusing plastic waste from the oceans.

The Z Chair is plenty strong enough for a large human being. Our max recommended weight is 25 stone (158Kg).

You may feel a gentle flex as you sit on the chair, this is normal.

The Z Chair RRP is £369.00 but online at Sit Straight you can purchase it for the amazing cost of £289.99.

We currently ship FREE to the Mainland UK and £4.99 to all other UK areas, including Northern Ireland, Isle of Man, Isles of Scilly, Scottish Highlands & Islands and the Channel Islands.

If you are outside this area and this country, then please contact us for bespoke shipping options and costs on our email address: info@sitstraight.co.uk.

Yes. We are confident that you will love the Z Chair. However, if you feel it is not for you then we offer a 30 day no quibble return policy. *Goods must be ‘as new.’ Please see our returns policy.

There is a ‘Normal use’ warranty of 2 years.

The Z Chair is made to the highest standards and is unlikely to be defective and should last you for many years when used in a normal way.