I just really made this cause I got annoyed by the normal undies being ugly when the smallest weight option doesn't have at least a C cup...

There very simple, low quality, but look fine in game. Nothing fancy really...

You DO need to download the original textures first, as these only override the regular textures, not the normal maps. Of Course you also need to use a version of CBBE that uses this mesh...

Install them here:
Data/textures/clothes/CBBEunderwear/female