Here's my latest rendition.
I know what you mean about minimalist, but I need a set of handwarmers (a nice alternative to the A2s).
This is based on John Lever's Radjacke - I guess that name stands for "radical jacket" - so here is my "Unradjacke".....
I thought it came from the German for bike: 'rad', so you get Bike Jacket.