100% Acetate
Pants:
Elastic waistband. Elastic still has good stretch
Jacket:
Quilted and puffy. Filling is Kodel
It has pockets!
Mandarin collar
Set-in three-quarter length sleeves
All buttons present and accounted for
Once upon a time, while people were lounging around in their house, they would wear stuff like this. Sure, maybe we are more practical these days. But I wish fabulous lounging was still a thing.