Black Dior B30 Worn Once

These Dior b30 are 100% real from a shoe company - I bought these 6 months ago for £850 brand new and have wore them only once ! - these look like there new straight from the box when I got them they got authenticed by eBay and came back 100% authentic I am looking about 750 for these - size 8.5 uk - any questions please ask

eBay