The Sojourn Porter 46 is a true traveler's workhorse that maximizes storage space and comfort for carry-on convenience. Internal StraightJacket straps securely compress belongings, and an AirScape backpanel keeps you cool and dry as you move through your journey. Attach your bag to wheeled luggage with an add-a-bag strap. Compatible with Daylite and Farpoint /Fairview daypacks. Made from durable fabric, you can count on the longevity of this pack for years to come. Wingjacket Protection – Flexible compression straps and padded sidewalls protect your gear and compress the bag when under-packed, making it carry-on ready for any flight Stowaway Harness & Hipbelt – Deploys quickly for backpack-style carry and tucks into a pocket in the ridged foam, ventilated backpanel when not needed Stable, Close-to-Body AirScape Backpanel - Comfortable ridge foam, vented backpanel moves with you and features a pocket to tuckaway the harness and hipbelt Interior Mesh & Liner Pockets – Organize tech accessories, toiletries or travel essentials for your next adventure, wherever that takes you across the globe. TSID Luggage Registration – Includes a lifetime luggage tag ID system that helps recover your travel backpack if it gets lost when flying or on the go Heavy-duty bluesign approved, recycled high tenacity and ballistic Comfortable AirScape backpanel with tuckaway harness and hipbelt Unique Straight Jacket compression provides extra padding and load control TSID luggage registration included with each piece 26L x 15W x 4H