Gorgeous brand new Chanel thongs I bought 10 years ago.Never worn mint condition

This pair of thongs were made in Italy and are made out of Calfskin. The European size is 36c but it fits a US size 6.5-7 for women. I am a true 7 and it fits me but it will fit both a 6.5-7. The box also says Navy color but it is actually black. I’m not sure why it says navy but it is truly black as you can tell from the photos. Please feel free to make me an offer! I don’t think Chanel makes these thongs anymore so I think they are discontinued.