I'm using the pattern for the hanten jacket from 'The Book of Boro' by Susan Briscoe. It is lined.
In the video, which I will link to later when it is released (I think it was mistakenly released at 7am, rather than 7pm), Kate makes a reversible jacket made from denim (old jeans) and some fabric from a boro kit she was sent. I'm thinking of using the men's shirts for one side (inside) and indigo fabric for the other. I'm planning to do some sashiko stitching on the indigo fabric. I've even toyed with the idea of doing some indigo dyeing, but that might be a step too far.