Got these for my daughter to replace the pants that came with the costume (for Mel, from Disney Descendants). She just turned 7 and wears small (6-7) Old Navy leggings and I ordered them in Small-6. They're a little bigger (both in width and length) than her little old navy blue leggings but they're quite nice and comfortable etc. and go well with her suit and even make it suitable for wearing under a sweater dress or something else the season. .
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