2YO DD is very tall and over 15kg.
She's still in her 0-18kg car seat & it technically still fits her BUT she can now get her arms out of the 5 point harness.
I can't do it up any tighter as it digs into her shoulders.
DH thinks we should get some kind of 'strap' to hold the chest straps closer together. Do they make such a thing/is it safe?
Anyone else have this problem? What did you do? Can you recommend a different seat?