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.
Slaixiu Leggings Fleece Printing GP777 3P B 130 Girls' Clothing and Leggings
54 Review
Kid Nation Unisex Heather Charcoal Girls' Clothing for Leggings
52 Review
ZukoCert Fleece Leggings Cashmere 2P B 130 Girls' Clothing for Leggings
61 Review
Spotted Zebra Girl's Disney Star Wars Marvel Frozen Princess Leggings: Unleash the Fantasy!
46 Review
Dancina Toddler Leotard Flutter Sleeve Girls' Clothing for Active
55 Review
Thermajane Girl's Cozy and Comfy Thermal Underwear Long Johns Set with Fleece Lining
46 Review
Pack Athletic Performance Basketball Drawstring Girls' Clothing
48 Review
Tommy Hilfiger Girls Crop White Girls' Clothing
54 Review