These are thin and stretchy. Material is soft and silky. it’s just SO tight and snug fitting. The arms especially squeeze my daughter super tight. If she tries to roll them up they can cut off lower arm circulation.I ordered both a size 6 and an 8 for my tall 3.5 year old. Average body type. 6 fits well , the 8 is long but still wearable do to the snug and stretchy fit…we just scrunch up the legs. There’s just gapping all along the buttons…in both sizes. It’s like these were designed for SUPER thin kids. If you’re kid isn’t crazy thin, you will have quite large gaps in between every button, leaving your child exposed to the cold air. That flaw along with the expensive price makes me not too happy with these pjs…as cute as they are. My daughter does like the flap hand mitts and the fact that the inner toes are fuzzy lined. These would be great if they were designed for more body inclusivityI like the ruffle - very girly, and love the soft fabric - always a hit with kids and parents! Nice gifts too!