^Yes, and to clarify from recent conversations with Reszo:
1. Vass only uses Horween Shell Cordovan.
2. Horween and other tanneries do sell horsehide, but Vass has not purchased any.
3. There were issues with recent lighter shades and Vass stopped selling those for now, and stands behind the shoes/boots made with that shell if there are issues.
4. The shell comes in multiple sizes, and the larger ones are required for boots. Latest shipment only had smaller...