The 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. Features Carry-on size (rules and restrictions may vary, please check with your chosen airline) Heavy-duty bluesign® approved, recycled high tenacity and ballistic materials 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 Interior mesh and liner pockets for organization