I use armor mods for my game as well as a custom troop mod. I kept running into the issue that the female body would clip through the custom armor.

After finding no mods to fix this or finding them all outdated I set out to fix it myself.  So, after a bit of trial and error, I was able to edit the skins.xml file to make the females in the game generally thinner. Basically the lowest value stays the same but the highest value is reduced on the sliders

Note: This directly effects the character sliders to all females so they will all be thinner as a result, not just the troops. Sorry, no thicc woman if you use this.

I have not tested this on detailed character creator so god speed if you give it a go.
I have tested this with Detailed Character Creation additional sliders. From what I can tell DCC uses its own values but it only effects your character. All others seem bound by the values within this mod unless you edit them directly through DCC.

I am not a modder by any stretch of the definition, this is just the fix I came up with. There may be a better fix out there, if there is feel free to let me know.

To install:
BACKUP skins.xml located in Mount & Blade II Bannerlord\Modules\Native\ModuleData

Unzip this file in Mount & Blade II Bannerlord\Modules\Native\ModuleData
Select replace when prompted

To uninstall:
Replace the modified skins.xml with the original I know you backedup

Face code in the min/max pictures.
<BodyProperties version="4" age="25.5" weight="0.0062" build="0.0201"  key="00087C0791B4200B1882A5B87565982867BDEA5E6A9107066689871A7B941009017006130700D511000000000000000000000000000000000000000074FC2003"  />