Hynes Eagle Travel Backpack 40L Flight Approved Carry on Backpack Black 2017 Water Repellent Polyester; Dimensions: 20.1 x 13.4 x 9.8 inches/51 x 34 x 25 cm; Capacity: 40L;Designed to fit the maximum size allowed on an IATA flight, fits in the overhead compartment as well as the under seat as storage in flight Multiple exterior compression buckle straps for adjusting the height based on your need; only 1 backpack in package A true hands-free carry on with suppressible shoulder straps, easily to convert from duffel into a backpack in seconds 1 front zip pocket with multiple interior slip pockets, second compartment fits up to most 15.6 inch laptop New version with new logo, side bottle pocket for extra storage and adjustable sternum strap for stability 3 carrying options and 2 modes (1 backpack or 1 backpack with 3pcs packing cubes) for travelers&#039; multiple alternatives, easy to grab and carry. 2 sturdy grab handles (top and side) for safe lifting from trunks and overhead compartments, and from beneath a seat. 2 hide-away contoured shoulder straps are well padded with air mesh; you can carry it comfortably as a backpack or convert it into a suitcase. 4 exterior compression straps are carefully placed to provide maximum compression and reduced stress on the zippers. If you start your journey with a partially packed bag you can prevent the contents from sloshing around with compression straps. Middle compartment with padded laptop &amp; tablet sleeve, designed for keep your devices at security. Zippered front pocket is perfect for boarding passes and will not walk open no matter how long your journey. Features interior slot pockets for travel essentials, from passport to power bank. Inner tie-down straps in the main compartment are generous in length and adjust from &#034;high&#034; to &#034;low&#034; cinch positions, keeping belongings from shifting. Cabin backpack has a quicker access zip side pocket for you to store beverage or water bottle. Adjustable sternum strap is designed for stabilization and carry comfort whether you&#039;re heading out in another city or exploring the backcountry. We offer 1 more zip mesh pocket in main compartment for extra storage, and help you organize your belongings. We offer 1 spare clasp strap with travel backpack for easy replacement in case of an accidental strap clasp broke.