I love it, my son loves it!! Huge win! I almost didn't buy this because I read in onne of the reviews that it would be too big for my little one. Not the case. My son is 15 months old (31 inches + about 22-25lbs) and he has no problem carrying this around full of things. The tip of the tail comes about 3-4 inches off the ground. He loves it and I love that it is teaching him to be responsible and carry some of his own things. It's not huge but can definitely hold some of his things. It has a buckle in the front to keep it from coming off if you are using the leash (or just don't want it to fall off) The straps can be adjusted so I suspect he'll be able to use this for another couple years if not longer. Great quality as well. Seams are good, zippers opena dn close easily. There is a little pocket to put the leash in when you aren't using it. This backpack i just so cute. I love that it is just as functional :)Update 4/30/20 we still use this backpack. Son is 4 now and it still fits him, he still likes it and it’s held up really well over the years.