The fit is fine. They are designed to fit a very wide range of sizes. So if your kid is on the small end of this range, they're going to be quite floppy and bulky. One pair had the thread pulled right out of the box - an immediate hole in the knee. I fixed it but I doubt it will hold up over time.
Warm and Soft Wool Socks for Kids - Cute Animal Design, Thick Thermal Crew Socks for Children and Toddlers in Winter
43 Review
Jefferies Socks Little Seamless Organic Girls' Clothing
44 Review
Children Toddler Thermal Cotton Winter Girls' Clothing
58 Review
SKINS Unisex Essentials MX Compression Calf Tight
49 Review
Amazon Essentials Little Short Sleeve Leotard Girls' Clothing for Active
61 Review
Hollhoff Gymnastics Playgrounds Shorts - Breathable Clothing for Girls
48 Review
C9 Champion Girls Supersoft Bright Girls' Clothing and Active
46 Review
Tommy Hilfiger Girls Crop White Girls' Clothing
54 Review