Our Katie XL is a duffel style bag and is the big sister to the Katie Large, this one fits a lot! Not quite a weekender but is perfect for an overnight stay, or a carry-all for the office. Made from buttery, organically tanned leather that will darken and get better with age. This leather has been produced using organic materials as opposed to environmentally harmful chemicals. It has a nostalgic leather smell, and a soft yet durable feel. It will develop a patina over time, like beautifully worn in saddle.