Trunki Boostpak Group 2/3 Car Booster Seat, Black/Green

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Product information

With the law requiring all children under 12 years old or 135cm in height to use a booster seat it’s important to have one to hand at all times. Boostpak is the ideal solution, a spacious, hand-luggage approved rucksack which doubles as a booster seat, perfect for car-pooling and family holidays.

The Boostpak eliminates the need to hire a second hand car seat when renting a vehicle on holiday. It also doubles as a dining booster when eating out, and can be used for trips to the cinema.

Featuring a hard plastic shell, fold out seatbelt guides, wipe clean removable cover, ergonomic back padding and ID tag. The Boostpak is certified to regulation ECER44.04 and is suitable for Group 2 and Group 3. It has hi-visibility horns and reflective trim, so your little one can be safely seen when they're using it as a back pack.

Suitable for ages 4-12 years (15-36kg, or up to 135cm)

All our car seats and infant carriers comply with current European regulation ECE R44.04.


  • Under no circumstances should a car seat be used on a passenger seat where there is an airbag.
  • Correct fitting of all car seats and boosters is of paramount importance to make them most effective in the event of an accident. Not all car seats fit all cars and it is important to check for fitting suitability on all cars you intend fitting the seat to, as well as re-checking if you change your car.
  • Always read the instruction booklet which comes with your car seat to achieve a safe and correct fitting, retaining the guide for future reference. We recommend fitting your car seat in advance of first using it.
  • We recommend that babies shouldn`t be left in Group 0/0+ car seats (infant carriers) for prolonged periods.



  • Please make sure that you check the car seat you choose is suitable for your car before ordering.
  • Some of our shops offer a car seat fit test, where a Nursery advisor will test the display model in your car to check that it will fit properly. Please contact your local shop to see if this service is available. Alternatively, please contact the car seat manufacturer who will be able to advise whether their model will be suitable for your car.
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    Car seats are categorised into the following groups and it is imperative that a category is chosen so the child`s weight falls within the range indicated:

    Car Seat groups:

    Group Child's weight approx. age of child
    0 birth up to 10kg/22lb birth up to 6-9 months
    0+ birth up to 13kg/29lb birth up to 12-15 months
    0+ & 1 birth up to 18kg/40lb birth to up to about 4 years
    1 9-18kg/20-40lb about 9 months to 4 years
    1 & 2 9-25kg/20-55lb about 9 months to 6 years
    2 15-25kg/33-55lb about 4 to 6 years
    1, 2, 3 9-36kg/20-79lb about 9 months to 12 years
    2 & 3 15-36kg/33-79lb about 4-12 years

    Note: some car seats will be approved in two or more groups.

Care instructions
Wipe clean
H39 x W17 x D39cm
Eligible for International Delivery
Facing position
2 and 3
Isofix compatitble Information Isofix is a system of dedicated attachment points in the car which car seats can be locked into. We recommend checking your car handbook for further information.
Manufacturer's Warranty
1 year
Nursery Type
Car Seats
Reclining positions
Suitable From
4 years
Weight Information Unpackaged weight
Weight or height of child
15-36kg or 33-79lb


Click & collect

Click & collect from John Lewis or Waitrose shops tomorrow from 2pm
375 participating John Lewis and Waitrose shops

Standard delivery in 5 working days


Named or Saturday UK delivery


Named day UK delivery pre-10.30am


International delivery not available


We want you to be happy with your purchase. If you're not, depending on the type of product, you can make free returns in the UK via John Lewis shops, Royal Mail, Collect+, or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454. Find out more about returns.

You'll find returns information on your delivery note. Unless faulty, we'd like you to make your return within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.

Q & As

Rated 4.8 out of 5 by 57 reviewers.
Rated 5 out of 5 by Really useful product I love it - Neat and tidy and the fact that my son can store toys in it resulting in a tidy car. Really handy when we go shopping as he wants to carry everything 10 November 2015
Rated 5 out of 5 by Brilliant product Great idea, I wish I had known about it ages ago, to save me the hassle of trying to stuff booster seats into already overfilled suitcases! Used only on one holiday so far but product looks durably made and of high quality. Son loves it, plenty of space for snacks and games whilst travelling. He said it was comfortable to sit on, too - and he did had to spend a fair few hours sat, so it must be ok! 02 September 2015
Rated 5 out of 5 by Wish I had known about this sooner! Bought this product to take on holiday. Saved more than the purchase price by not having to hire a car seat from the car hire company. Useful storage compartment when carried as a backpack. Great quality. 01 September 2015
Rated 4 out of 5 by Great product Our 3 year old loves this seat. Perfect as a second car seat for short journeys, trips to theatre/cinema as booster seat etc. Easy to use and carry. A good buy 17 February 2015
Rated 4 out of 5 by Invaluable for cars abroad We bought the seat as we were travelling by air with our two and a half year old grandchild, and needed a safety seat for the airport to hotel trip. We have seats in the UK. It would be wise to adjust the seat for the infant's height before trying it in the taxi or hire car, but the fitting system is easy to understand. It can be difficult to fit if the car seat belt is new, as the fitting requires this to be threaded through the guide on the seat. The seat is probably not as comfortable as a regular seat, but was fine for journeys of an hour. It also works as a booster seat in restaurants where cushions are not available. 01 October 2014
Rated 5 out of 5 by brilliant holiday essential Our car rental company wanted over 90 euros for a booster seat for 10 days - this seat and rucksac for our little girl was amazing value. She thought it was great - it became her toy bag with cars- ponies - colouring pens - loom bands!!! She actually carried it - most of the time - and it was a great booster seat. It was actually higher than her one at home and so she could see more - so one happy 5 yr old. As out little girl is small for her age this seat will now be used for many more holidays. Construction is sturdy easy to use and feels well built. I felt as a mum she was safer than the shocking seat she had last year from Portugese rental company. 29 July 2014
Rated 5 out of 5 by Fantastic! We bought this for our nearly 3 year old son, to save having to hire a car seat for our summer holiday. Highly recommend it. We used it for short, local trips and he seemed to enjoy it. It seems comfortable and the seatbelt guide ensures it fits him and the car (which not all car seats do). We didn't use it as a backpack, as he's still quite small, but used the space inside to keep delicate toys protected. Light enough to fit in our hold luggage. Useful extra car seat, which he can use for easily the next few years. 29 July 2014
Rated 4 out of 5 by Ideal for travelling Really useful works as a backpack, with plenty of storage space, easy to carry and will hold those extras that you just have to bring back when travelling. Car safety is not always as high a focus in other countries but this little trunki gives you peace of mind knowing that your child is comfortable and safe when used as a booster seat. Great buy! 09 July 2014
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