My medieval chemise or shift. The long, flowing, unstructured gown with a drawstring neckline makes the perfect under-gown for vests or a cote hardie. I didn't make the vest (though I have made similar things) but it matched really well with the dress.
The dress, by the way, came about because I had an odd textured fabric in a salmon color that I had no idea what to do with. I needed a chemise and there was enough of this fabric to make it.
This picture above is just to show a little of the chemise's fullness.
Take note of the lacing on the sleeve!