I bought 6/7 for my tall skinny 6 year old BC she is 6 (girls are small) on target but they are too big. The legs are baggy and a little long, not tight at all like stretch pants. I bought another pair (before I found the pilling) for them in a size 4/5 and they are much better but still don't fit like stretch pants. Pros - they're really thick, the inside is actually blurry, and my daughter loves them! The colors are bright and pleasing. Cons - they curl up after the first wash so I won't be buying them again (although my daughter doesn't care and continues to wear them).
ZukoCert Fleece Leggings Cashmere 2P B 130 Girls' Clothing for Leggings
61 Review
Adorable and comfortable Splendid girls' leggings for kids and babies
80 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