I have always bought Old Navy jeans for my 2 young boys. But I am really disappointed in this most recent purchase. It's the first time I've bought the "Wow" jeans. They run extremely big. My 6 yo is really skinny with long legs. His current ON size 5T jeans fit great just a little short on him. And... the boys size 5 are still too big even with the inside tabs pulled tight. I ordered the Wow jeans in size 5T and they DO NOT have an adjustable elastic tab inside of them like I thought they did. He is swimming in them and they are also too long. They are as big as the boy size 5's. And without the adjustable waist band inside the jeans. He will probably, not be able to wear these even as he gets bigger. The same goes for the size 3T wow jeans I ordered for my other son. They are huge as well. I cannot return them as I have already washed them, so I will save them and hopefully they will grow into them. They both need some new jeans. Now I have to buy some again. This time I won't be buying any from Old Navy. The inconsistencies in sizing from Old Navy is leading me to find a different brand for my kids. No wonder Old Navy's sales are down. I like the ON karate jeans for my kids. But they do not make them in size 6T and the boy size 5 are still too big for my son.