A good duffel bag needs to do only one thing: hold stuff. A great duffel bag, however, needs to check off a few more boxes. A great duffel bag should still carry your clothes, kicks, chargers, toiletries, and everything else in the most space-efficient, easy-to-find way possible.
A great duffel should outlast your passport—or better yet: YOU. Despite years of being stuffed in an overhead bin and thrown in the trunk of your car. A great duffle should make everyone else in the TSA line jealous. And in most cases, that means the best duffel bag is made from leather. Cowhide keeps your gear protected and develops a singular patina over time.