I bought a size 5-6 for my 6 year old daughter to wear with the Fancy Nancy costume. The waistband is a bit loose which is ok (it held up my kid's waist) but the leg and hip areas are baggy! As they are not tight I wouldn't consider them leggings. Scaling down will only tighten the waistband, but it probably won't make much of a difference in the leg size.
Slaixiu Leggings Fleece Printing GP777 3P B 130 Girls' Clothing and Leggings
54 Review
Spotted Zebra Girl's Disney Star Wars Marvel Frozen Princess Leggings: Unleash the Fantasy!
46 Review
Adorable and comfortable Splendid girls' leggings for kids and babies
80 Review
IRELIA Girls Leggings Modal Spring Girls' Clothing for Leggings
52 Review
Amazon Essentials Little Short Sleeve Leotard Girls' Clothing for Active
61 Review
Pack Athletic Performance Basketball Drawstring Girls' Clothing
48 Review
Hollhoff Gymnastics Playgrounds Shorts - Breathable Clothing for Girls
48 Review
Dancina Toddler Leotard Flutter Sleeve Girls' Clothing for Active
55 Review