My DS1 is 4 and is getting too big for his current carseat, a maxicosi priori / tobi (Ds2 & him go between the 2 seats). I believe the next stage is a booster seat but I have no idea what to get! We are expecting DC3 in summer so ideally I'd like a smallish seat that can fit between the other 2.
I've seen booster seats that are just a cushion sort of idea, and then there are others that look just like what he is in just now (ie, the seat has a back and sides round the head etc). What's the difference between them?
Can anyone help? Thanks!