A regular booster seat lifts the child to be in the position of an adult. mifold does the exact opposite, instead of lifting the child up it holds the seatbelt down. It does this at three points: there are belt guides on either side of the child's hips to hold the lap belt correctly against the bones and off the soft stomach. These belt guides are adjustable to three sizes to make sure that the belt is always held snugly in place. There is a third clip on a strap that pulls the seatbelt chest strap down correctly onto the bones of the shoulder; away from the face and neck. So like a regular booster, mifold holds the seat belt in exactly the correct position on the bones of the hips and the bones of the shoulder, without needing a big, bulky seat to lift the child. In a collision, the child is protected in the same way. mifold simply works to hold the adult seatbelt correctly on a child.

mifold is a revolutionary new car safety solution. There are many journeys where children do not have a booster (in fact we estimate in as many as 25% of all child journeys - and research has shown that 50% of kids in the USA don't have the right booster when carpooling for the school run) we want to eliminate these risks completely. With a compact and portable device, there are no excuses, a child can always be safe no matter whose car they are in.

The adult seat belt chest strap must lie on the child's clavicle (collar bone); not on the face or neck and not over the edge of the shoulder. The mifold shoulder belt positioning strap and clip is attached to the back of the mifold seat and goes behind the child’s back. The clip is then attached onto the adult seat belt chest strap and holds it down on the clavicle. The length of the belt positioning strap and clip is adjusted to the right position.

One of our priorities has been to design mifold to be comfortable as well as safe and easy to use. There are almost 1 million mifold seats in use and. We have had positive feedback about comfort and our users tell us that they really do love it.

The comfort comes from three design and engineering factors: 
(i) We use a unique EVA DenseFoam™(Ethylene-vinyl acetate) to provide constant support at the pressure points. EVA is typically used as a shock absorber in sports shoes and boxing gloves. 
(ii) The foam fabric pad extends to the edge of the seat to ensure there is no hard edge. And 
(iii) the child’s weight is designed to sink the entire mifold seat into the vehicle cushion, leveling out the two surfaces and minimizing the edge effect. This is exactly the same as with a regular booster seat. They only have a thin layer of foam/fabric on a plastic/styrofoam base and most of the comfort comes from the underlying car seat (the same thing happens with a hard-backed book … try it!).

mifold comes in 3 exciting colors:  Denim Blue, Slate Grey and Pearl Grey.

In 1963, Dean C. Hunter filed a US patent for the “Safety Seat” … a box that lifted up a child and held a lap belt in place across the bones of the child’s hips. Today, half a century later, boosters are essentially the same ... blocks that lift a child up to meet the adult safety belt. mifold changes this. Instead of lifting the child up, mifold does the opposite and holds the seatbelt down to fit the child. Our patent "Apparatus for adapting a seatbelt for a child" is already granted in one country and pending in 45 others (http://j.mp/mifold-patent).

We have designed mifold to be easy to clean by washing the surfaces with a mild solution of soap and water.  Remove the soap by wiping with clean water and then air dry. Alcoholic gels can also be used to clean any plastic parts.  Do not use bleach. We do not recommend putting mifold in the dishwasher.


mifold is designed for children aged 4+ years. However, car seat regulations can be quite confusing and are different in each country; they can be based upon age, weight, height or a combination of all three. In the US and Canada, mifold is designed for children weighing from 40 Ibs to 100 lbs (18-45kg) and between 40-57 inches (100-145cm) tall. In the EU the weight range is from 15kg up and until a height of 150 cm.

mifold is constructed using aircraft grade aluminium 6061 and a super tough plastic polymer called Delrin® 100ST from Dupont™. It has been successfully crash tested and each component rigorously tested to ensure its longevity even under the most extreme use as a child car seat.

mifold is manufactured in China. Our manufacturing partners are world renowned manufacturers that are ISO approved and operate at the highest level of manufacturing and quality control standards. They already manufacture child restraint products for several other well known companies.

mifold is not regulated for adult use and therefore we do not recommend that it be used by adults. 

A ‘Switchable Retractor,' or a retractor that switches from an emergency locking retractor mode (ELR) locks up in the event of a crash to an automatic locking retractor mode (ALR) that will lock the seat belt into the retractor as the webbing is retracted. This locking feature in the ALR mode is often referred to as a “child restraint locking feature” and is recommended for installing rear-facing or forward-facing car seats with internal harnesses. In most vehicle seating positions, the locked mode occurs when the seat belt is fully extended from the retractor. 

This child restraint locking feature or ALR/locked mode is not intended for use when restraining an occupant with the vehicle lap and shoulder belt, including when the lap and shoulder belt is combined with a booster seat. Several vehicle manufacturer owner manuals, including Ford, Toyota, Volkswagen and Audi, specifically advise or warn against using this feature with children sitting in a booster car seat. Child passenger safety researchers also advise against this, indicating that locking the seat belt on a child in a booster seat may not allow enough forward motion of the torso to prevent submarining under the lap belt in a crash or deceleration event. 

Researchers also recommend that children who are not behaviorally or developmentally ready to sit still in a booster would be better protected in a high-weight harness child restraint. 

mifold agrees with the use guidelines and recommendations provided by the vehicle manufacturers and child passenger safety researchers that the vehicle lap and shoulder belt system should be used as it is designed to be used in the ELR mode. Thus mifold does not recommend switching the retractor into the locking mode in the mifold instruction manual.

mifold has revised its recommendations based upon an analysis of vehicle seat belt system testing results. The current Ford Motor Company Inflatable seat belt system (available in Ford and Lincoln vehicles) is approved for use with US, Canadian and EU versions of the mifold Grab-and-Go booster seats with the following model numbers: 

• USA - MF01/US (the model number is on the fabric label sewn onto the Shoulder Belt Guide Strap) 
• Canada - MF01/CA (the model number is on the fabric label sewn onto the Shoulder Belt Guide Strap) 
• EU - MF01/EU (the model number is on the sticker attached to the back of the Shoulder Belt Guide)

The mifold grab-and-go booster seat complies with the booster seat flammability tests required under the NHTSA regulation FMVSS213 for the USA and under the UN regulations: UN ECE R44.04. This flame retardancy is achieved only using compounds that comply with California Proposition 65 and the European Community Regulation REACH (EC/1907/2006).


The mifold booster car seat conforms to the most universally accepted global booster car seat regulations. European Union ECE R44.4; FMVSS 213 in the United States, and the RSSR regulations in Canada. Please check the following link for more details: www.mifold.com/regulatory-approval

The mifold booster car seat conforms to the most universally accepted global booster car seat regulations such as ECE R44.4 for the EU, and FMVSS 213 for the USA. These standards are different, and as a result, there are some minor design changes between the versions. Specifically, the product dimensions differ slightly from country to country.Secondly, the labelling and language requirements vary between territories. This means that the labels and instruction manuals are different based upon the market. Finally, in all territories, whilst the mifold booster seat is designed to be used by children from the age of four years old. However, there are also height and weight recommendations that vary according to the country.

As with other manufacturers of child restraint systems, we do not publish our crash test videos.

mifold is a backless booster seat that is fully compliant with US FMVSS 213 (for backless booster seats) as well as EU R44.04 which covers the UK and Europe; these standards do not include side impact protection. There are other products available that offer different features, some that exceed the standards (we have used them with our own children over the years). mifold is creating a whole new solution. There are many journeys where children do not have a booster (we estimate as much as 25% of all child journeys - and research has shown that 50% of kids in carpools for school runs don't have the right booster). We want to eliminate these risks completely. With a compact and portable device, a child can always be safe no matter whose car they are in. The massive improvement in child car safety over the last two decades has come from the adoption of car seats. Statistically, there can only be a minor reduction in the current rates of injury or death by improving the protection in existing car seats. However, continuing the increase in the use of approved seats, where one is currently not available, can still offer a major improvement and we are excited by the prospect of mifold contributing to this car safety objective.

The "more than 10x smaller” size claim is based on the external dimensions of the mifold grab-and-go booster seat, and the volume it occupies. Compared to regular booster seats commonly available in the markets, mifold is less than one-tenth of the size, or as we say, "more than 10x smaller.” 
The “just as safe” claim is based on the mifold grab-and-go booster seat's compliance with booster seat safety regulations for child restraint systems in different territories. See our other FAQs for specific details of the territories where mifold is compliant with local booster seat safety regulations.


We are not currently marketing mifold products for use in Australia due to Australian regulatory issues.

mifold is available to buy through a number of channels: mifold.com, and through local Distributors. Please be aware, if you live in the US you will receive a US FMVSS 213 regulated version; if you live in Canada, you will receive a Canadian RSSR regulated version; and Europe, Asia and the rest of the world will be sent a EU version corresponding to the ECE R44.4 .


mifold carries an expiry date of 7-years from the date of manufacture as marked on the product.  Every car seat is different, so always read the user guide to find out the seat's expiration date and other important information. Most car seats last between five and nine years after they were manufactured (not necessarily after they were bought); that's why it is important to check the user guide.

Yes, mifold has an industry standard warranty for car seats and depending on the country, the warranty may be better than this.

From our experience so far, we have discovered that certain countries can and will charge a local tax.  It is the purchaser's responsibility to pay all local taxes where applicable (including but not limited to sales tax, VAT, GST, duties, etc.).

There are 2 different versions of mifold. One is compliant with International regulations UN ECE R44/04. The other with the US and Canadian regulations. If your mifold seat has an orange R44/04 label on the base or on the shoulder strap, then it is the international version and yes, this version of the mifold seat is regulated for use in every country in the world except: Australia, Canada and the USA. Different countries have different child restraint regulations that require minor design, packaging, labelling and instruction manual differences. These differences mean that we cannot advise you to use a mifold seat in a country where it is not regulated as local law enforcement may not recognize your version of the mifold seat.


The hifold® fit-and-fold™ highback boosteris the ‘world's most adjustable booster™’.

hifold®features “MultiFit™” technology, with 243 individual settings, to ensure optimal belt fit and comfort, for every child, as they grow. hifold® is also the first highback with the “MultiFold™” system. hifold®folds fully to an ultra-compact size for storage and portability.  


hifold® keeps your child safe and comfortable on every adventure.

Thanks to our unique “MultiFit™” technology, hifold® is the world’s most adjustable booster™ seat.hifold®has 9 height adjustments, 3 head width adjustments, 3 shoulder width adjustments and 3 hip size adjustments: giving a total of 243 different individual settings! hifold® fits every child for comfort and safety as they grow, whatever their size and shape.

The innovative “MultiFold™” system means that hifold®folds down fully to an ultra-compact size for easy storage. And, at only 4.5kg (9.9 pounds) its lightweight design and convenient carry strap make it ideal for taking on vacation, moving from car to car, or for taxi and Uber trips.

All children should continue to use a child restraint with a five-point harness for as long as possible.  Like all boosters, children should start using hifold®when they have outgrown their car seat with a 5-point harness and when they can sit in the booster seat properly for the entire duration of each. 

Sitting properly means that the child must remain seated without slouching under the lap belt, moving shoulder belt under arm or behind back, or leaning forward or sideways moving out of position so the vehicle belt remains properly positioned.



hifold®has one of the broadest height and weight ranges for a highback booster. hifold®can be used by children weighing 15kg to 45kg (33 pounds to 100 pounds) and 90cm to 150cm (36” to 59”) tall.


hifold®has a patented design which optimizes the seat belt fit of the lap belt and chest belt in order to fit the child. hifold®is a booster seat that is regulated for global use and meets or exceeds all the relevant car seat safety standards including NHTSA FMVSS 213 for the US, UN ECE R44/04 for most countries, the RSSR regulations in Canada, CCC for China and various local versions for other markets.  This means that, wherever you buy your hifold®seat, it can be used in every country on earth.*

 * Except Australia where regulation is pending.

In addition to optimally adjusting the seatbelt fit, hifold hassix impact protection zones: 2 xhip, 2 x shoulderand2 x head.

The 6 advanced impact protection zones and 4 layer design ensure optimum comfort and protection. Hifold uses advanced lightweight materials including EPE, EVA, EU foam and a polypropylene shell



hifold®is available in two color combinations:

Slate Grey and BlackRacing Red and Black

The AirFlow™ washable seat cover can be hand-wiped to remove dirt.  The entire cover can be removed and washed in a machine.


Replacement AirFlow™ washable seat cover will be available in additional colors and with special limited edition designs from time to time.

Dimensions -

Folded down: width 340mm, height 270mm, length 370mm
Unfolded at its largest size: width 465mm, height 770mm, length 435mm

Boxed dimensions: 355mm x height 270mm x length 390mm







hifold®is one of the world’s first truly global child restraints that can be used in every country in the world. hifold®is designed and engineered to meet or exceed the regulatory standards for every country on earth.  hifold is already regulated in the US (NHTSA FMVSS 213), Europe and the Rest of the World (UN ECE R44/04 ) and China, and Canada.  As with most child restraints, it may not be possible to have one single product that complies with all regulations. If this is the case, we will make every effort to have the seats comply with as many different regulations as possible. We are currently working on having hifold regulated for Australia. 

hifold®uses the vehicle installed adult seat belt to restrain the child and to hold the seat in place. It does not use the Isofix or Latch systems.

When hifold®is being used by a child in a vehicle, all the folding components are locked securely in place. These folding and locking mechanisms have been created and tested to be strong and secure so that they are not affected by the forces of a potential collision.

The mifold range of grab-and-go car seats will always be the most compact and portable child restraints that we produce. They are so small that one can be kept in a child’s school bag and glove-box so that children can always be safe, no matter whose car they are in.


hifold®is our new addition to the world of ultra-compact car seats. hifold®offers the added support, comfort and protection that some parents are looking for in a highback booster.hifold®is fully adjustable and grows with your child.  It also folds down to solve your storage and portability needs.

For those parents who use mifold as an occasional booster when their regular child restraint is not available, hifold®also offers the option of a daily car booster.

hifold®boasts comfortable padded seats and the advanced “MultiFit™” technology means that hifold®can be adjusted to provide optimal belt fit and comfort for all children from 15kg to 45kg (33 pounds to 100 pounds) and 90cm to 150cm (36” to 59”). Thanks to its 243 individual settings you will always be able to find the perfect fit for your child, and hifold®will continue to fit them as they grow.

The revolutionary design of hifold®means that is can be set up from folded in less than 3 seconds making it ideal for on-the-go situations. hifold®is also easy to fold down for storage in 5-easy steps.

hifold is available at mifold.com , www.amazon.com, www.target.com  , www.walmart.com and www.nordstrom.com

The carry bag will shortly be available as an additional item on www.mifold.com

hifold®   includes a wide carry strap for easy carrying.

The hifold cup clip is available to purchase separately from mifold.com

The hifold carry bag will be available shortly to purchase from mifold.com 


Orders made through mifold.com ship throughout the USA only. Please contact your local distributor or Amazon site to see if hifold is sold locally

The recommended retail price of hifold®in the US will be $149-$169

hifold®is manufactured in China. Our manufacturing partners are world renowned manufacturers that are ISO approved and operate at the highest level of manufacturing and quality control standards.

hifold®uses a special AirFlow™ washable fabric seat covers that can be easily removed and washed.The fabric seat pads are machine washable on a delicate 30°cycle and there is a care instruction label attached to the seat covers. Any plastic areas may be cleaned using soap and water or with alcoholic gel.

hifold®has a useful life of seven years from the date of manufacture.

From our experience we have discovered that certain countries can and will charge a local tax. It is the purchaser's responsibility to pay all local taxes where applicable (including but not limited to sales tax, VAT, GST, duties, etc.).

Yes, hifold®has an industry standard warranty for car seats and depending on the country, the warranty may be better than this.

Orders made through Indiegogo are not refundable. Indiegogo is not a traditional eCommerce store and when you contribute to the Indiegogo campaign, you are supporting us in the development of hifold.  We use the funds to make hifold®a reality. As a "Thank You” for supporting the campaign, hifold®was offered at a significant discount and on this basis refunds are not available.

The unique, compact portability of hifold is achieved using an advanced, thin, light-weight material for the protective seat pads.
hifold uses EPE (Expanded polyethylene) foam, which is more energy absorbent and more elastic than other foams used in traditional booster seats.
EPE foam has strong cushioning and shock proofing capabilities even in thinner pads. Its elasticity means that thin pads will not break like traditional brittle foams and it is environmentally safe.

* The regulatory compliance process has not started for Australia. Currently, hifold cannot be used or sold in Australia.