Amazon.com: LOVEVOOK 40L Travel Backpack for Women & Men 。? Color: Ink Blue-grey Blue-black ?【Versatile & Airline-Approved】Sized at 18 × 14 × 8 inches, this carry-on backpack fits perfectly under the seat or in the overhead bin. Approved by Spirit, Frontier, JetBlue, and other budget airlines, it\'s the ideal personal item for hassle-free air travel. ?【Spacious & Organized】With a 40L, 4 compartments, and a lot of pockets, designed to allow you to easily separate and organize your travel personal items, this travel backpack can accommodate 3-7 days worth of travel items. ?【3 Extra Packing Cubes & Wet Pockets】This carry-on bag includes 3 extra packing cubes – 2 storage bags and a shoe bag – as well as a built-in wet compartment pocket. Perfect for storing wet clothes, towels, and toiletries, these packing accessories ensure your belongings remain dry and prevent any leaks or moisture from affecting your other items. ?【Durable & Comfortable】Built to withstand the challenges of travel, this carry on backpack is made from tear-resistant, water-resistant, and abrasion-resistant materials. It also has adjustable shoulder straps, a padded back panel, and shoulder straps, ensuring comfort during long trips; a travel essential. ?【Secure & Practical】This large travel backpack features a suitcase-style opening for easy access to your belongings at security checkpoints. There\'s also a padded electronics compartment and umbrella/water bottle pockets on the side. A luggage strap is attached to the back.