C-String Thong

Thong and C-String. The C string is the only truly and completely invisible thong. Let's see how it is used and the different models.
The C string is the new frontier of the thong. Invisible under any type of dress, from the tightest ones to those with vertiginous slits. The name "C" string derives from the shape of the thong which closely resembles a letter C. The shape also resembles a headband and it seems almost impossible to understand how to wear it.
The C string is probably the most minimal underwear ever invented: the classic thongs, in comparison, are almost modest. Seeing it we can not help but wonder how it can stand up and remain in its place: it is practically self-regent and works almost interlocking. The back in fact slips slightly between the buttocks and gets stuck there.