My 4 year old daughter is "unicorn size" in the sense that she can typically wear clothes for 2-3 seasons/years before outgrowing them (she still wears many 18 month old shirts and dresses). I bought these super cute mermaid print 4/5 pants but they were VERY tight and uncomfortable so we're going back. They are more like a capri leggings, exposing the panty line.
Spotted Zebra Girl's Disney Star Wars Marvel Frozen Princess Leggings: Unleash the Fantasy!
46 Review
ZukoCert Fleece Leggings Cashmere 2P B 130 Girls' Clothing for Leggings
61 Review
Slaixiu Leggings Fleece Printing GP777 3P B 130 Girls' Clothing and Leggings
54 Review
Lilax Girls Basic Length Leggings Girls' Clothing in Leggings
52 Review