When do you swap from a car seat to a booster???

[GreatAuntieWurly]

DS2 is 3.4months, he currently has a stage 2 car seat but its getting a little tight tho the straps are as loose as they will go. Thinking about getting a booster seat but not sure if he is able to have one. Dont want to get it if he it too small.

15kg is the minimum for a high back booster but most harnessed seats go up to 18kg.

I had that dilemma a few months ago (ds now 3.7).

I really wanted a stage 2 (booster) seat with a 5 point harness and isofix, but apparently such a thing doesn't exist .

I looked at this Britax which has the harness, but no isofix, and in the end, after reading 'Which' reports etc, I went for this Britax which doesn't have the harness, but does have isofix and attaches using the seatbelt. Ds is fairly comfy in it (it reclines slightly which was a feature I particularly liked) , although it will improve as he gets bigger. He is about 16.5 kgs and just over a metre in height. HTH

We have the first one for dd who is 6.

My son was 3 when he went in to the maxi cosi rodi as he safer in there with a seat belt than in a harness seat.