I ordered 18-24 months and received 3 packs of tights in 3 different sizes. Judging by the labels they are all the same size except for two made in Korea and one made in China and they are all completely different. I had many Naartjie products for my son when he was little and loved them so I expected them to be of the same quality. I don't know what happened to this company but the quality isn't what it used to be and obviously whoever packs their orders isn't paying attention either.