The newborn hat doesn't have a tag, so I can't confirm the size, but it stretches, so I think it was around 40-44cm. The denim hats are size 42cm, 44cm, and 48cm. Each was only worn a few times, so they are in good condition for used items, but please refrain from purchasing if you are concerned. Would you like to purchase them in stages? I will fold them for shipping, so please understand.