Long ago, when I was first getting started making wafuku, Hara and I bought a copy of Folkwear pattern #112, "Japanese Field Clothing". The pattern includes pieces and instructions for hippari tops, mompe pants, and padded jackets, so it's really three patterns in one. These garments are not quite period, but they are so generic and informal that I don't think it really matters. They're certainly better to wear around camp than sweatpants and a t-shirt.
I still recommend this pattern to people who are just getting started with Japanese garb, particularly if they already have sewing skills but are used to following patterns/instructions and not used to the improvisational nature of most garb making. These patterns teach some important skills that can be adapted to other garb, such as how to make and attach three-layer neckbands and four-layer waist ties.
Recently, I went back to the well and followed these patterns again myself. The field clothing I made when I was first starting out really was not wearable any more, and most of my more recent work has been more formal. This is all 100% linen fabric I bought at the chain fabric store, so there's nothing here I think is out of anybody's reach.
Last Edit: Dec 24, 2019 8:48:08 GMT -5 by Deleted: fix the image