The era of the Costanza wallet has come and gone. Meet Defy's slim profile Shell Cordovan leather Swaddle wallet. As one of the most expensive leathers in the world, shell cordovan has wonderful properties and a fascinating history. Horween Leather company in Chicago is the only tannery in the US that still produces shell cordovan leather. During their 100 year history, Horween has perfected tanning the leather shell into a supple leather that ages gracefully and retains its softness and strength for decades. Horween's Shell Cordovan leather is prized for their softness and durability. Cordovan requires a 6 month tanning process in order to allow the tannins to fully penetrate the dense fibers of the shell. Part of this process involves hot stuffing the leather with waxes and oils that return to a solid at room temperature. Hand-cut from a single Shell Cordovan Shell, each Swaddle simply folds around your cash, credit & business cards with ease. Shrinkage is good!