I used measurements to order my daughter the medium size she wears with all other brands (Old Navy Leggings, Walmart and Target). These leggings were so small and tight and short that she could barely put them on. These are very thick good quality leggings so I'm ordering two sizes up as a spare to see if they fit. The compression factor is definitely there and that's probably why they seem so small. These leggings were probably 4 inches shorter than the typical full length leggings from other brands (like Old Navy).
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
Eocom Pairs Childrens Winter Animal Girls' Clothing
64 Review
C9 Champion Girls Supersoft Bright Girls' Clothing and Active
46 Review
Fancy Girls Communion Dresses White Girls' Clothing in Dresses
53 Review
Castle Fairy Pageant Wedding Communion Girls' Clothing for Dresses
53 Review
Castle Fairy Communion Pageant Bridesmaid Girls' Clothing for Dresses
54 Review
UNACOO 2 Pack Sleeveless Cotton Dresses Girls' Clothing
62 Review