Emily is about 49 inches and 47 lbs. She has about an inch left to grow in the True Fit. BUT, the harness is tight and there is no way to loosen it any more. It was tight to the point where she complained that it was pinching her shoulders (and this is the kid who would snug her seat up TIGHT). She is a very skinny kid. I'd be interested to see how they expect a kid Emily's height with an additional 5 lbs on him/her to get into the seat.