Reference garment: Loro Piana Kasai Bomber

Basic bodice block: Aldrich Flat Kimono Block (Chapter 2). Alternatively, you can use any jacket block you like. I choose the kimono block because it is easier to make the raglan sleeve from it. The raglan sleeve is this design is a two-piece raglan, with a seam in the middle, which can be easily modified from a usual set-in sleeve. A one-piece raglan sleeve is harder to modified because you need to eliminate the middle seam.
As usual with Aldrich men block, there are built-in 1 cm seam allowances that need to be removed.

Further instruction including the sleeve and hood is based on Aldrich "anorak" (Chapter 3).
Fabric: Woven. I use nylon.
Not recorded: Pockets. Buttons. Topstitches. Puckering. Some other minor adjustments. I also clones over/under to some pieces, then adjust the warp/weft and pressure to make the wrinkle/puckering effect.
Notes:
- If I am to redo this, I will reduce the armhole/underarm ease (reduce the scye-depth). Aldrich block has too much armhole ease for my liking.
Preview on sketchfab.
3D files dowload link (expire after a month).
Basic block download link. The folder name is "Thomas - Aldrich - Flat Kimono Block 240204"