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. Wingjacket Protection - Our iconic Wingjacket compression straps with padded sidewalls offer a flexible and secure option to protect contents and keep loads under control. When not fully stuffed, bag compresses to a smaller size. Stowaway Harness & Hipbelt - Harness and hipbelt deploy at a moment’s notice for backpack-style carry and quickly disappear into the backpanel for safekeeping when the bag is checked. Sustainable & Durable Build - Constructed with heavy-duty bluesign APPROVED, 100% recycled high tenacity nylon and ballistic polyester main body and bottom fabrics, using DWR treatments made without PFAS. Comfortable AirScape backpanel with tuckaway harness and hipbelt. International carry-on size*. *Always check with your airline. Osprey's Sojourn Porter 30L Backpack is packed full of features well-suited to travellers, whether frequent flyers or train riders. This backpack is comfortable to carry with the storage capacity of a duffel. Best of all, if you need to squeeze this pack into smaller dimensions for travel, the StraightJacket straps can compress contents to a smaller size and the stowaway harness and hipbelt can be stowed for safekeeping whilst in transit.