- Cost Efficiency: Sized at 16.9 x 11.8 x 7.87 inches, this travel backpack complies with personal item regulations for most airlines, allowing you to avoid extra luggage fees. - Additional Storage: Included is a waterproof bag measuring 8.66 x 2.36 x 5.7 inches, perfect for toiletries, cosmetics, and towels. Enjoy easy access to your essentials. - Organized Design: The Sinaliy carry-on backpack features a padded compartment that accommodates up to a 16-inch laptop and a 12.9-inch iPad. With a wet pocket and multiple multifunctional pockets, you can keep all your daily and travel essentials neatly arranged. - Versatile Carrying Options: The backpack includes a hidden shoulder strap pocket, allowing you to carry it like a briefcase. This design keeps the shoulder strap clean during security checks. - Convenient Packing: With a 180-degree opening and ample interior depth, this travel backpack allows for packing similar to a suitcase. Side buckles help compress the bag when overpacked. Use Scenarios: - Ideal for business trips, where you can easily access your laptop and documents while keeping personal items organized. - Perfect for weekend getaways, providing ample space for clothes and toiletries while fitting under the airplane seat. - Great for daily commutes, allowing you to carry your essentials securely and stylishly, whether biking or on public transport.