Two way elite - when outgrown?

[patchesmcp]

I've got a TWE which my DS who's almost 3 is currently using. He's just over 18kg, 105cm tall and I was looking at him in it today and thinking he might be getting too big for it as his eyes look almost level with the back of it. I know it lasts until 25kg and this is what I've been focusing on, but it occurred to me I have no idea when he'll outgrow it height wise, so I'd appreciate some advice on this point.

Thanks

My 20kg, 114cm DS still fits his just fine.

Thanks nocheese

Strange question but do you know how long your DS's back is? My DS's height is in his back, rather than his legs. He's virtually grown out of his 4-5 t-shirts, but still just fits into his 2-3 trousers so whilst he's only 105cm it's his body which gives him his height hence why I'm concerned the seat is getting too small.

I don't, but his back is also long. Unless his eyes are level with the very top of the seat, he's fine. Remember the straps should be at or below the shoulder rearfacing, not above.