*RARE* Hermès Birkin 25 Côte à Côte Retourne Bag in Bleu Saphir Tuffetage and Caban Swift Leather with Palladium Hardware*RARE* Herms Birkin 25 Cte Cte Retourne Bag in Bleu Saphir Tuffetage and Caban Swift Leather with Palladium Hardware The Cte Cte Birkin refers to a special edition of the Herms Birkin, distinguished by its unique weaving quilting technique (tuffetage) that creates a textured side by side effect. Often crafted in Swift leather or mixed materials (such as Swift paired with another texture). Produced in very limited quantities, its a highly collectible