I used my Kozy a few times at Disney last week when Colin wouldn't walk or ride, and my arms were too tired to carry him. He's 31lbs and 39" tall, and I'm 5'4". Weight-wise, I was fine in the front carry. We were just knocking heads sometimes, and he wanted his arms to be more free than they were. But at his size, there are trade-offs!

Oh, and I don't like the back carry for a big toddler - the backpack is very uncomfortable and digs into my arms, and crossing the straps in front is only somewhat more comfy and is kind of embarrassing to walk around in.



http://www.windsorpeak.com/dc/user_files/18659.jpg