Osprey Porter 30 liter backpack has been used two times and in perfect condition. From Osprey- The Porter 30 offers the comfort of a backpack along with the functional simplicity and storage capacity of a duffel—and does it all in an attractive, durable package. Whether you’re tossing it in a car, shouldering it on a train or carrying it on a plane, padded sidewalls help to protect inner belongings and StraightJacket straps compress contents to a smaller size. Deploy backpack-style carry when you need it to climb the steps to your hillside bungalow and tuck it away when you don’t. Constructed with recycled fabrics, bluesign®-approved materials and PFC-free DWR. -Meets carry-on size restrictions for most airlines - Dimensions 19.69H x 12.5W x 9D IN. -U-zip zip access to main compartment with lockable zippers on main and laptop compartments - 30L total volume -Shoulder straps and hipbelt can be tucked away when the bag is checked -Protected rear panel zip laptop sleeve and front panel vertical zippered pocket for books or other documents -Tuckaway web loops to attach a shoulder strap (sold separately) -StraightJacket compression straps compress the bag to a smaller size when it isn’t full