Part of the stylishly capable Sojourn Family of travel packs and luggage, the Sojourn Porter 30 marries the comfort of a backpack with the simplicity and storage capacity of a duffel??all in one attractive, durable package. Whether you??re tossing it in a car, shouldering it on a train or carrying it on a plane, padded sidewalls protect your belongings. Updated StraightJacket straps compress contents to a smaller size. An AirScape? backpanel keeps you cool and dry as you move through your day. The add-a-bag strap connects this pack to your wheeled luggage. Daylite?and Farpoint?/Fairview? daypacks are compatible.