I ordered these adorable shoes in a size 12-18 months for my 17-month old granddaughter.  When I received them, they were larger than expected.  No matter - she will grow into them, and it will be worth the wait.  The shoes look so delicate, but they are well-made and supportive enough for a young toddler.  There is a large selection of Robeez Soft Soles to choose from, so I think I will be buying more as time goes on.  Very nice!