Wudkey 40L Waterproof Travel Backpack, Airline Approved 。?【Airline Approved Personal Item】Measuring 18x14x8 inches, meets size requirements for Spirit, Frontier & more. This carry on backpack fits under seats or in overhead bins—no checked baggage fees ?【180° Suitcase-Style Opening】The travel backpack offers a 180-degree opening main compartment for easy packing and quick access to your items, ideal for speedy security checks and on-the-go organization ?【40L Capacity & 3 Compartments】40L spacious carry on bag holds 3-5 days\' essentials with 3 compartments, including a padded 17.3\" laptop compartment. Perfect for weekends, business trips, or daily use ?【Comfort & Durability】Travel bag is made with water-resistant materials and padded shoulder straps for all-day comfort. Reinforced stitching and smooth zippers deliver reliable performance trip after trip ?【3 Packing Cubes & 13 Pockets】Weekender bag with 3 cubes (toiletry/mesh/shoe) and 13 pockets including a wet pocket - Keeps travel essentials like clothes, shoes, and toiletries organized and accessible ?【Urban Travel & Commuter Ready】Features handles on the top and one side, a luggage strap, and side water bottle pocket. This sleek, minimalist backpack transitions easily from business commutes to city exploration