This pattern is designed to fit a smart doll with medium bust. However it does look great on the default small bust as well.
It does fit some dollfie’s too. When trying to make a few different sizes for different busts, I found out my torso’s had different lengths as well, so I stopped with sizing for dollfie until I figure out what is what.

The pattern is knitted bottom up, in the round until casting off the back and splitting the front in 2 pieces.

The shoulder straps are crocheted, but you can do that with your fingers too if you do not have a crochet hook. Just make sure your loops are tight.