Osprey's Sojourn Porter 65L 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.  Osprey Sojourn Porter 30L Backpack - Green | George Fisher