UGG Classic Ultra Mini Boot - Kids | Altitude Sports
UGG® Classic Short II Boot - Little Kid / Big Kid - Chestnut | JourneysCanada
This also applies if you are a small, junior or petite size in womens clothing. Sometimes it can be less expensive to buy large or Xlg clothing in the children's section. :
UGG Buyer's Guide | Fit, Size and Care Tips | Allsole