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. Item Dimensions: 21.7H x 13.8W x 9.1D in; Item Weight: 3.45lb.