I ordered these pants for my daughter who is an average weight and height for her age. She wears 5T of all brands and weighs about 40 pounds. I ordered a size 5 and they were huge at the waist and long enough to fold them under her feet and it doesn't look like they will fit until next year. Although very nice quality.
C9 Champion Girls Supersoft Bright Girls' Clothing and Active
46 Review
Pack Athletic Performance Basketball Drawstring Girls' Clothing
48 Review
Amazon Essentials Little Short Sleeve Leotard Girls' Clothing for Active
61 Review
Thermajane Girl's Cozy and Comfy Thermal Underwear Long Johns Set with Fleece Lining
46 Review