New BILT Black Motorcycle BOOTS men’s size 11.5 / 12 / euro 45

New BILT Black Motorcycle BOOTS men’s size 11.5 / 12 / euro 45 They are marked as a US size 12, but my son thought they ran small, more like a 11.5. I could not find a fabric content tag, They look like leather, but may be a PU / vegan leather.