We are living away from oz, but coming back in October for a holiday.

I'm just trying to get my head around the new laws and what I need for DS. I have a seat for DD.

I know the weight and age is supposed to be 7years and 26kg.... DS will be 5 but already weighs 25kg.

What will I need for him? He's not tall enough for just a regular booster seat with adult belt (plus I'm not comfortable with that anyway)

I'm looking at getting the infa-secure tri-max delux expanding booster seat. Does anyone have this seat, do you think it would be suitable for DS?? Would I have to get him a harness thingo? This seat would have to last for when we do return home permanently (hopefully sooner rather than later!)

Help!

(mods please move if in the wrong spot)