Soft Grey Unique Vintage Shoes

These slide-in shoes are truly unique. They whisper Arabia or exotic places in the Far East, but are neutral enough to match any style. They are marked as European size 39, which equates to a US 8. They are made in Spain. Not sure of the material. They could be leather but since that is nowhere printed on the shoe, I hesitate to say that. The soles show wear as can be seen in the picture. Heel height is approx. 1". Offers welcome!