Once upon a time in a faraway catalog called American Girl, there were undergarments. Unfortunately, someone in the kingdom of American Girl decided that dolls don't need to have undergarments anymore. That person or persons would be wrong.
I myself love to wear undies, and many of the outfits we buy require a certain type of undergarment for the proper shape and fit. However, AG undies are going the way of the dodo. The items needed to keep Felicity's dresses in the right 1700s shape are now retired.
This was disappointing to learn and we here in Badger's Wood totally missed the boat on that one (as well as the boats for many other sets of under-thingys).
Fortunately for us, The Dollies' Dressmaker still creates these fantastic items (sans under-bodice). We were able to get a set of panniers and a tie-on pocket to go under the colonial era dresses we own. To be smart, we should probably get another set soon.
In the photos my sister Ellie is showing off her legs in order to reveal the undergarments (the two blue and white bulges next to her legs are the panniers). The last photo shows you how they give the dress the proper shape.
Shape may seem like an unimportant detail in the grand scheme of the entire outfit, but in the end we are trying to learn about history and get the whole picture.
What did colonial girls have to wear, either seen or unseen? They certainly would not have been walking around without any undergarments on!