A wonderful exotic combination created from quill ostrich and hand-stained contrasting calfskin. Footwear excitement, for sure! Bi-Tonal Ostrich/Calf Oxford Cleverly Designed Combination of Quill Ostrich and Burnished Calfskin Injected Memory Foam Comfort-Cushion Insole Durable Full Leather Sole Handmade in Spain Factory #SX50144-S