mifold Sport Booster Seat


mifold Sport offers a premium leather style cushioned seat, our stylish racing stripe design, and superior comfort. Designed for children aged 4+, the mifold booster seat is the most advanced, compact and portable booster seat in the world.

The mifold is 10x smaller than a traditional booster seat, yet just as safe. It lowers the adult seat belt so that it’s brought down from more delicate areas like your child’s shoulder, face, neck and stomach and positioned on their shoulders, hipbones and across their lap.

Only 6% of children in Singapore use an appropriate child restraint. A lot of things make it complicated for the parent: taxis, being on vacation, having a rental car, having three children and so on. mifold makes it easier for you. With a compact and portable booster seat, a child can keep one with them all the time and drivers can even keep spares, with ease and without cluttering up a car and losing cabin or luggage space.

Out of stock

Product Description

mifold Sport offers a premium leather style cushioned seat, our stylish racing stripe design, and superior comfort.

Designed for children aged 4+, the mifold booster seat is the most advanced, compact and portable booster seat in the world. 10x smaller than the average booster seat, the advanced design of the mifold lowers the adult seat belt to fit the child snugly shifting the belt from the stomach and neck, and making it a more comfortable and safe fit.



  • 10x smaller: So small it can fit in your glove box or backpack
  • Comfortable: mifold Sport offers a premium comfort leather style seat
  • Portable: Easily fits into backpack so your child always has mifold with them
  • Big Kids: No more fighting! Older kids won’t feel “babyish” – for use on children age 4 to 12
  • Three in a row: Fits three in a row perfectly even in the smallest cars
  • Foldable: Compactly folds up to 10in x 5in
  • Premium: mifold Sport has a luxurious and comfortable leather-style racing seat and a superior performance tread design for improved grip on the top cover
  • This version of the mifold Sport meets and exceeds the ECE R44.5 regulatory standard for booster seats.




How does it work/compare to a regular booster? 

With a traditional booster seat, your child is lifted to be at the seated height of an adult, so that the seat belt rests on their body comfortably and safely. mifold comfort’s modern design does the opposite of that by holding the seat belt down instead of raising your child higher.

mifold comfort does this with the belt guides on either side of the child’s hips, and the clip. These three points work by holding the lap belt against the stronger bones of your child instead of their soft stomach, which can injure easily in an accident. These belt guides are adjustable to three different sizes to make sure that the seat belt is always held snugly in place. The clip on the strap then pulls the seat belt upon the chest down on the bones of your child’s shoulder, instead of their soft face and neck which also injures more easily.

mifold comfort does what a regular booster seat does, without the bulkiness of one. During a collision, the child is protected in the same way – the only difference is how your child is held in their seat.

Why should we use mifold? 

mifold comfort’s revolutionary new design helps eliminate risks that come up where children do not have a booster seat. There are an estimated 25% of all child journeys where children don’t have the right booster seat when traveling. With a device as compact and portable as this, there are no more excuses.

What is the purpose of the shoulder strap?

The shoulder portion of the seat belt must be positioned on the child’s collar bone instead of their more vulnerable face or neck. It should also not be behind or over the edge of their shoulder. Here, the shoulder strap works by going behind your child’s back and clipping onto the shoulder portion of the seat belt, so that the belts are brought away from their face and neck by holding it down on your child’s collar bone. The length of the attached shoulder strap can be adjusted to fit your child.

How comfortable is the mifold comfort?

mifold comfort has made it one of their prime concerns to create a design that ensures three things: comfort, safety, and ease of use. They are currently using and researching more than 100,000 mifold booster seats, and have had great feedback on how comfortable it is. (Children say they love it!)

mifold comfort was able to achieve this from three design and engineering elements:


  • mifold uses a unique EVA DenseFoam (Ethylene-vinyl acetate) to provide constant support at the pressure points. It is typically used in running shoes and boxing gloves as a shock absorbing material.
  • The foam fabric extends to the edge, so that the booster seat is padded all around, leaving no hard edges.
  • mifold has made sure to design their booster seat such that your child’s weight is enough to sink it into the seat cushion of your vehicle. When your mifold sits flush with the rest of the vehicle seat, the edges are much less noticeable. A traditional booster seat works similarly – they’re made up of a thin layer of foam or fabric on a plastic or Styrofoam base and most of the comfort comes from the vehicle seat itself, kind of like sitting on a hard cover book!


What colors can I choose from?

Taxi Baby carries 4 of mifold comfort’s 5 cool colors. Charcoal Grey, Emerald Green, Ocean Blue and Royal Purple.

Is the mifold comfort dishwasher safe?

We do not recommend washing your mifold comfort in a dishwasher. There shouldn’t be such a need, however – the mifold comfort is designed to clean easily. You can wash the surfaces with a mild soap and water solution, which you can remove by rinsing with clean water and then air drying. Please do not use bleach.

mifold is considering testing how the safety aspects (flame retardant properties) of the booster seat will react to a dishwasher. Until we hear of an update in regards to this concern, usage guidelines will remain the same.

How is the mifold comfort different from the mifold One?
The mifold comfort was designed to be a very compact and portable car safety seat solution. It is supposed to help make travelling with a child restraint more convenient, by providing children and parents the experience of ease and flexibility that the mifold comfort introduces without sacrificing any safety qualities. It would be great for families that moved from one car to another a lot – bringing it from one place to another would be a lot easier given its foldaway feature.

mifold was inspired to create the mifold One when they found that in fact, many of their customers worldwide were actually leaving their mifold booster sears in the same car between uses, instead of taking them from one location to another or from one car to the next. The mifold One is simply a non-folding version of the mifold, for families that intend to use it like a regular booster seat. Even though this version of the mifold doesn’t fold into a smaller size, the mifold One is still incredibly slim and would fit in the car seat pocket nicely.

If you’re deciding between the mifold and the mifold One, mifold recommends taking the mifold One if you intend to leave your booster seat in one car all the time. If you plan to put your booster seat in your child’s backpack, are travelling in more than one vehicle (e.g. grandparents’ car or taxis) and generally plan to bring it around a lot, the mifold is a better option for you.

Technical Questions

Have the age and weight ranges specific to the mifold comfort been defined?

Yes! The mifold comfort is made for children aged 4 years and older. Car seat regulations remain a confusing topic in different countries and sometimes there are requirements that are based on a child’s age, but other times it can be based on their weight, height, or a combination of all three.

In the US and Canada, the mifold has a weight requirement of 18-45 kg (40-100 lbs) and a height requirement of 100-145cm (40-57 inches) tall. In Europe, the weight requirement is anywhere from 15kg and a until a maximum height of 150cm.

Is the mifold durable?

The mifold is made up of aircraft grade aluminium 6061 and a highly durable plastic polymer called Delrin 100ST from Dupont. These components have been rigorously tested and successfully passed crash tests. Even under extreme use, the mifold holds up its longevity as a very durable child booster seat.

What is the mifold’s country of manufacture?

The mifold is made in China. The manufacturing partners mifold work with are world renowned, ISO approved, and operate at the highest level of manufacturing and quality control. They are also manufacturers for other well known child restraint companies.

Does the LATCH/ISOfix system work with the mifold?

The mifold is designed to work without a LATCH system. The mifold has an innovative approach to a regular booster seat and the LATCH system does not help with how the mifold works. This makes set-up of the mifold simple. It can be quickly put in place and
stowed away for every journey.

Is the mifold suitable for small adults?

No. This product is not meant for adult use and should only be used by children. mifold has often been presented with this question, because shorter adults have to deal with the seat belt being uncomfortable. However, mifold’s main market is that of child restraints. As such, it is only approved to be used for children. mifold will consider moving on to designing an adult version when they’ve made a sizable establishment in this market.

Can the mifold be used with a switchable retractor?

A seat belt retractor that switches from Emergency Locking Retractor (ELR) mode to Automatic Locking Retractor (ALR) mode is called a switchable retractor. It locks the seat belt in as it is being retracted.

The ALR mode, where webbing is locked from being further released so as to reduce slack and increase seat belt tightness, is not intended to be used when restraining an occupant with the vehicle lap and shoulder belt. This includes using the lap and shoulder belt in conjunction with a booster seat. In vehicle owner manuals, manufacturers warn against using this feature with children sitting in a booster car seat. Child safety technicians and researchers also advise against this, because locking the seat belt on a child seated in a booster seat would not give them the forward motion they need to prevent submarining under the lap belt in a traffic collision.

It is also recommended that children who are not behaviorally or developmentally ready to sit still in a booster seat use a high-weight child restraining harness as they would be better protected this way.

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

Can I use an inflatable seat belt with the mifold?

mifold’s recommendations have been revised after their result analysis of vehicle seat belt system tests. So far, only the current Ford Motor Company inflatable seat belt system found in Ford and Lincoln vehicles is approved for use with the mifold Grab-and-Go booster seat.

They can be used with US, Canadian and European versions of the mifold. Here are the approved mifold model numbers:
1. USA – MF01/US (you can find this on the label on the Shoulder Belt Guide Strap)
2. Canada – MF01/CA (you can find this on the label on the Shoulder Belt Guide Strap)
3. Europe – MF01/EU (you can find this on the sticker attached to the back of the Shoulder Belt Guide)

Is the mifold treated with flame retardants?

Yes. The mifold complies with booster seat flammability test requirements 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).

Safety and Certification Questions

Where do I go to see the mifold’s crash test results?

mifold does not publish their crash test videos nor do other child restraint manufacturers. mifold would have had to pass all crash tests and relevant assessment to be certified under legal safety regulations.

Is there side impact protection on the mifold?

mifold is certified under US FMVSS 213 and EU R44.04 for backless booster seats and these certification standards do not include side impact protection.

Taxi Baby offers products that do provide side impact protection and there are many that exist that meet and exceed the standards (mifold’s been using them with their own children for years!).

mifold’s creative new innovation is inspired by their objective to lower the percentage of children that travel without a booster seat. By designing a lightweight, portable and equally safe version of the traditional booster seat, they hope to eliminate the risks caused by the lack of one. With a design like this, the mifold cannot offer the added weight and build that a booster seat with side impact protection would have.

What is the “more than 10x smaller and just as safe as a regular booster seat” claim based on?

mifold’s “more than 10x smaller” claim is based on its dimensions and volume. When compared to traditional booster seats you see more frequently in the market, the mifold is less than a tenth of the general size.

mifold’s “just as safe” claim is based on its certification. The mifold is carefully assembled, durable, passed crash tests and most importantly, is certified to ECE R44.04 for Europe and FMVSS 213 for the US.