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includes Accessories + Fitting

Item: 596244



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Car Seat Fitting
  • Description
  • Specification
  • Reviews
  • Delivery Options
  • Help & Advice
  • Buying Options

    The Cosatto All in All 0+/1/2/3 Car Seat ISOFIX Mini Mermaids will take your child all the way up from infancy up to 36kg (approx. 12 years). The car seat begins as a rear-ward facing infant seat, providing optimum safety for your child and complying with all European requirements and regulations for car seats; you can be certain that your child will be safe in the event of an impact. It fits rearward-facing up to 13kgs and forward-facing from 9-36kg.  With ISOFIX and ISOFIT options plus belt fitting in all groups, Cosatto's All in All can fit in most cars whether they have ISOFIX points or not.
    Cosatto's All in All’s exclusive Anti-Escape system and anti slip pad and tummy pad will mean your infant is firmly secured in place. The Cosatto All in All has added side-impact protection along with deep side wing panels, which are built to absorb forces will mean your infant will be protected and cushioned with bumps and impacts. Adjustable multi position shoulder and headrest heights will make it possible to find the perfect fit -  Cosatto's All In All evolves with your child - No need to buy a bigger seat as your child grows!

    Cosatto All In All Group 0+123 Car Seat Isofix - Mini Mermaids Extra Info

        * Comes with industry-leading 4 year guarantee.
        * Group 0+/1/2/3 car seat.
        * Suitable from birth up to approx. 12 years old.
        * Rearward-facing 0-13kg
        * Forward-facing 9-36kg
        * Universal belted-only fitting for Group 0+/1/2/3 modes.
        * Universal ISOFIX in Group 1 – using ISOFIX points and top tether strap.
        * Beyond that ISOFIT group 2/3.
        * Complies with R44.04
        * Designed and tested for your newborn right through to 36kg. (0 – 12 years approx.)
        * Evolves with your child. Adjustable multi position shoulder and headrest heights for the perfect fit.
        * ISOFIX fitting with a top tether strap to secure the seat & minimise forward-rotation.
        * Side impact protection – contoured seat shape with deep side wing panels & built to absorb forces.
        * Includes patented 5 point plus anti-escape system. (Group 1 only).
        * Quick release 5 point safety harness distributes forces over the strongest parts of the body.
        * Padded removable seat liner & newborn seat insert.
        * Anti-slip chest pad and tummy pad included.
        * Removable washable soft goods. You’ll thank us.
        * Industry leading free 4 year guarantee.
        * Never put a child in a passenger seat fitted with an active front airbag. Airbags are designed to protect adults but can have the opposite effect on children.
        * Always be sure that your car seat and base are fitted correctly and are compatible with your child and car. Always refer to your instruction manual. Fit matters.


  • Group: Group 0+1-2-3
    Isofix Compatible: Yes
    Weight: 0 to 36kg
    Adjustable Headrest: Yes
    Depth of Seat: 60cm
    Direction: Rearward and Forward
    I-size: No
    Recline Positions: 2
    Removable Covers: Yes
    Restraint Method: 5 Point Harness
    Rotating Seat: No
    Side Impact Protection: Yes
    Weight of Seat: 12kg
    Width of Seat: 43.5cm
  • COSATTO ALL IN ALL GROUP 0+123 CAR SEAT ISOFIX MINI MERMAIDS is rated 4.1 out of 5 by 7.
    Rated 5 out of 5 by from excellent carseat I was looking for a good car seat for our newborn daughter (it seems like.she was to small for almost every one that I have tried), but in this one she fits perfectly. No crying while driving, just sleeping. I would recommend it to everyone
    Date published: 2018-07-12
    Rated 1 out of 5 by from Had to send back! Absolutely gutted that this car seat wasn't compatible with our car we have a Ford smax had no choice but to send back
    Date published: 2018-06-27
    Rated 5 out of 5 by from Absolutely fantastic. This is our third cosatto purchase in the past year. The giggle 2 pram, the zoomi car seat and now the all in all car seat. The quality of the products are great. The boys love the designs and how comfy they are. The all in all clicks in the the car really easy with the isofix. Putting the kid in the seat works great.
    Date published: 2018-06-24
    Rated 5 out of 5 by from Fantastic I bought this a couple of weeks ago and it’s absolutely amazing , my little boy (7months) loves it , especially now he can face forward , o wish we had bought it from birth, very padded , very secure , bonus that the base is included with the seat plus its isofix with top tether . Or you can use isofix and seatbelt which has worked a treat for us , it’s very secure hardly moves. Another benefit is there is a video online that shows you how to fix it to the seat easily. extremely easy to pull out straps one handed compared to my other seat LOVE LOVE LOVE THIS !
    Date published: 2018-06-21
    Rated 5 out of 5 by from Comfortable looking chair I've been looking for an isofix car seat for my daughter but wanted one without the separate base, so the cossatto all in one ticked all the boxes. The chair itself is quite bulky and I found trying to fit it into my mother in laws car a bit of a struggle (Vauxhall corsa) but I guess every car is different so I suggest try it first. Fits fine in my zafira. Great features , funky design and lots of lovely padding especially if using from new born. Reclines well , my daughter sleeps no problem in this chair.
    Date published: 2018-06-08
    Rated 3 out of 5 by from Best in front facing mode I bought this over the other ‘all in ones’ on the market as I already have the Cosatto hold baby seat which is fab. This seat has the usual cosatto fab designs and colours and has lots of useful additions such as the isofix guides, anti escape system, pocket for straps when not in use etc. Front facing it installs very easily using the isofix in both our cars and seems like it will be very comfy for baby. However, it is very bulky and heavy so once it’s in the car you don’t really want to keep moving it! Also we have been unable to fit it in either of our cars in the rear facing position. Following the instructions it just does not feel safe or secure- seatbelt only fitting in rear position! Emailed help desk to get more info but they just told me to go to Halfords and ask them!!! Not helpful when there is not a convenient one to go to. This is not the end of the world as we already have the Hold but it’s frustrating that we cannot use it in one of the modes.
    Date published: 2018-05-26
    Rated 5 out of 5 by from Amazing carseat! This is such a fab product - it's beautiful and colourful and everything I love about Cosatto, but it is also an excellent product. The carseat is sturdy and with the ISOFIX feature I know it's fitted correctly and baby is safe. There is extra padding so baby is comfort but totally safe and secure.
    Date published: 2018-05-02
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  • UK Delivery

    £3.99 Standard Delivery available on orders under £40 placed by 8pm*

    Your delivery date will be communicated at checkout. Delivery times are Monday to Saturday.


    UK Delivery

    Free NEXT DAY Delivery available on orders over 40 placed by 8pm*

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    Delivery times are Monday to Saturday. Next Day delivery not available on all products; including Built Bikes, Bulky items and Web Exclusive products.

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    UK Delivery

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    Items in stock - collect from 1 hour
    If your item is in stock at your chosen store, you can collect it from one hour after ordering online. We'll hold your item in-store for seven days.

    Items not in stock - collect next day*
    If your item isn't in stock, we can order it to your chosen store for collection.
    *If you place your order before 8pm you can collect it from 4pm the following day (except Sundays), and we'll hold your item in-store for seven days. Bike delivery will take three days, and an extra day if you'd like us to build it for you.

    Please note that items sent directly from the supplier need to be ordered by 3pm for collection two days later. All delivery times will be shown during checkout.


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    Price Seller Info Purchase

Some of the parts we sell here at Halfords have been reconditioned. These will carry a Refundable Deposit or an extra surcharge amount. When you add one of these reconditioned items to your basket, we'll add this extra cost automatically.

Once you've sent us your old item we'll check it over, and then refund you the full surcharge as long as everything is ok.

Before you return your old unit please make sure it's in re-serviceable condition. So if you're returning caliper casings, you'll need to double check they aren't badly damaged or broken. If the part you've sent is found to be unserviceable, we reserve the right not to refund the surcharge.

Please note that if you're returning your old unit to our National Returns Centre then this will be at your own expense.

Cosatto Child Car Seats


£224.95 The Cosatto All in All 0+/1/2/3 Car Seat Mini Mermaids taking your child all the way up to 36kg