It is possible to design any style and color crocodile skin, shark skin, ostrich skin, lizard skin, calf leather strap to fit the Cartier Santos Roadster Ballon Bleu Pacha Tank Calibre-de-Strap. Depending on your watch model, they may be able to offer custom strap options.To learn more please visit:https://www.customhu.com/product-category/cartier-santos-dumont-ballonbleu-pasha-roadster-pasha-roadster-strap/