Maxi-Cosi booster seats are a popular choice for growing families. For use with either a lap-sash seatbelt by children from approximately 4 years of age until your child reach approximately 8 years of age. 

Maxi-Cosi booster seats are specifically designed to protect your child in the instance of a car crash. Our world leading safety technology Air ProtectTM coupled with GCELL body protection work as a barrier to protect your most precious cargo. 

Our booster seats are intelligent, with expandable side wings, customizable harnesses and comfort features such as our world first ‘Cool Baby’ wicking fabric. ‘Cool Baby’ wicking fabric actively draws moisture away from your child’s skin, keeping them cool, dry and comfortable all year round. 

Maxi-Cosi boosters are your perfect choice for customized safety for your growing family.

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  1. Rodi XP
    Rodi XP

    The Maxi-Cosi Rodi XP child car seat offers full side protection. Its adjustability in height and width accommodates your growing child. The lightweight Rodi XP car seat is fitted with a regular ca

  2. Rodi AirProtect
    Rodi AirProtect

    The patented AirProtect® side impact technology in the headrest of the Maxi-Cosi Rodi AirProtect® car seat reduces the risk of head injury by as much as 20%

  3. Rodi XP Fix Booster
    Rodi XP Fix Booster

    Meet the Rodi Fix XP booster seat which is perfect for families who need to use one car seat between multiple cars. The Maxi-Cosi Rodi XP FIX is our lightest child car seat with ISOFIX connectors,

  4. RodiFix Air Protect
    RodiFix Air Protect

    Quick and easy buckle up with extra protection of child's head. Easy backrest adjustment from the top and ISOFIX installation

  5. Kore i-Size Booster Seat
    Kore i-Size Booster Seat

    Meet our Maxi-Cosi Kore i-Size, a booster seat that allows your child to buckle-up by themselves. Suitable for children between 100 and 150 cm and offers the utmost comfort as it grows with your ch

  6. Kore Pro i-Size
    Kore Pro i-Size

    Kore Pro i-Size is equipped with the ClickAssist light, an innovative feature that makes the buckle up area visible in all circumstances. It allows your little ones to fasten their seat belt

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Accessories for your booster seats


An absolute must-have item! This smart looking baby bag is spacious enough to hold all your nappy-changing gear, plus room for shopping!

Universal Cup Holder - Grey

Made of easy wipe-clean plastic, the Maxi-Cosi Pocket fits all toddler and child car seats by Maxi-Cosi and other brands.

Back Seat Protector

Parents can be relieved, their nice car interior is safe thanks to the Maxi Cosi back seat protector.

Booster and Forward Facing Car Seats. All you need to know.

Booster Seats

Is your child aged 4-8 years of age?

Then they must travel in a forward facing child restraint or a booster seat. The type will depend on their age and size.

Forward Facing Car Seats

When using a forward facing car seat it must:

  • be securely attached to the car seat by the seat belt
  • have it's top tether strap attached
  • have an inbuilt harness.

When putting the inbuilt harness on your child, its straps must come out of the slots just above their shoulders. If the straps are more that 25mm below your child's shoulders you will need to move the straps to a higher slot.

You should move your child to a larger forward facing child restraint with an inbuilt harness or a booster seat if their shoulders:

  • are above the highest slot for the harness, or
  • have reached the shoulder height marker available on some restraints.

Booster Seats

Booster seats are for use with either a lap-sash seatbelt by children from approximately 4 years of age until child reach approximately 8 years of age.

Booster seats are held in place by the child’s own body and the vehicle's lap-sash seat belt. A child can be injured in a crash if the seat belt is not properly adjusted.

Tips when choosing and using a booster seat

Never use a lap-only seat belt with a booster seat, only a lap-sash seat belt. If there is no choice but to use a lap-only seat belt, you must also use a child safety harness.

Check that the sash of the seat belt crosses your child's shoulder and does not touch their neck. The sash guide on the booster seat can be adjusted to prevent this. If your seat has a top tether strap make sure you use it.

Choose a booster seat with an expandable headrest.You can adjust the height of the booster seat as your child grows.

Children aged 4 years to less than 7 years must use either:

  • a forward facing child restraint with an inbuilt harness, or
  • a booster seat.

Choose what's best for your child

Children grow at different rates and there can be big differences in their heights and weights. Therefore you can choose the type of restraint that is best for your child's size.

Even if your child is 4 years old they may not be ready to travel in a booster seat. We recommend you keep your child in their forward facing restraint with an inbuilt harness until they are too big for it and then move to a booster seat.

Front or back seat?

Children aged 4 years old to under 7 years old can only sit in the front seat if all of the back seats are taken by other passengers under 7 years old.

If your vehicle does not have a back seat (e.g. a ute) they can travel in the front seat if they are in a child restraint as long as the airbags are inactivated.