I bought the Sis sweatshirt so sister can match her Bro and Bubby! My mom got me the Mama, so we'll all match! I got a 6 for my petite 5 yr old, but she'll be able to wear 2 seasons, if not more! The sweatshirt is SO soft and cozy,not that thick sweatshirt material at all, which I love for it South GA weather! I LOVE LB sweats and this collab is perfection.