I've always found overalls really cute! This will go well with graphic tees and sweatshirts. Since these are boyfriend fit on the bottom I believe you can safely size down one and follow the size chart below.
Size chart: S (1-3), M (5-7), L (9-11), XL (13-15)
Fabric Content: 64.7% Cotton, 21% Rayon, 12.9% Polyester, 1.4% Spandex
Rise: 10"
Inseam: 27"
Model Info:
Size: 1
Height: 5'9
Waist: 24"
Hip: 34"