Fit perfect on our 18-month old boy. He really liked it too! Now, I'm not sure I'm going to use it a lot, don't want to weigh him down or twist something, but for special outings it's a fun addition. Gives him some feeling of control of his important stuff. And while the leash -- sorry, "tether" -- makes me think about an episode of Modern Family with Lily, it is very short and the shock-absorbing action is pretty cool. Good design and build quality.

UPDATE: I now use this all the time when we go out to eat. He's old enough that a restaurant visit doesn't require my full-sized 'baby backpack' (or mummy's diaper bag) anymore. But I do want to take a paper bib, a plastic table cover, a spare diaper and wipes, a bag of emergency wipes, changing pad, couple of other small things. So now I use his little backpack and it's less of a traveling circus entering the restaurant. Quick and easy, perfect size.