This lightweight bag is easy to organize and has capacity for multi-day travels. The name comes from the vintage bags designed to fit beneath the seats of railroad pullman cars. It’s made from lightweight 500D Cordura nylon in a canvas weave similar to our iconic Tin Cloth, plus 1000D Cordura woven like the tried-and-true Rugged Twill. Both of these highly abrasion-resistant materials are dry-waxed to provide the legendary water resistance of our heritage waxed cottons.