This is a long full skirt that was made with Blender's cloth simulator. It will fit female and mostly female humans, though some adjustment may be needed for toddler, senior and plus-size humans. A diffuse texture is included. Illustration shows skirt with subsurf of two. Kira is also wearing Sleeveless Crop Top by punkduck (http://www.makehumancommunity.org/clothes/sleeveless_crop_top.html), which was color adjusted in Blender (Red 1.2, Brightness 0.6).
CC0 - Creative Commons Zero