I've seen a few reviews of shirts that are oversized but fit great. My daughter is 4 and the 4T are a bit big but she is small. The adult environment fits as expected. The shirts were also of good quality.
Shamrock Girls' Summer Sleeve Shirts - Girls' Clothing and Tops, Tees & Blouses
44 Review
Shop the Comfy and Tag-Free Kid Nation Crewneck T-Shirt Collection π for Girls! Top-Notch Clothing, Tops, Tees, and Blouses for Your Little Fashionista!
45 Review
Girls' Clothing: Spotted Zebra π§ Toddler Long Sleeve Tops, Tees & Blouses
49 Review
Spotted Zebra Girls' Short-Sleeve Flutter T-Shirts: Amazon Brand for Fashionable Kids
43 Review
Hollhoff Gymnastics Playgrounds Shorts - Breathable Clothing for Girls
48 Review
Dancina Toddler Leotard Flutter Sleeve Girls' Clothing for Active
55 Review
Thermajane Girl's Cozy and Comfy Thermal Underwear Long Johns Set with Fleece Lining
46 Review
Eocom Pairs Childrens Winter Animal Girls' Clothing
64 Review