-Expandable Carry-On, Flight Compliant- This backpack expands from 33L (18.9x13.8x7.9 ) to 42L (18.9x13.8x9.8), offering ample space comparable to an 18-inch suitcase. Its dimensions meet most airline carry-on requirements, fitting easily in overhead bins or as a personal item-Fast Security Checks Organized Travel- With a quick lay-flat design, this backpack facilitates the security procedure, saving time. Multiple compartments keep clothes, up to a 17.3-inch laptop, and essentials neatly organized and accessible for a smooth journey-Waterproof USB-A USB-C Charging- Stay powered up on the go with our integrated, waterproof USB port, featuring both Type-A and Type-C interfaces. Simply connect your power bank inside (not included) to charge devices conveniently-Enhanced Durability Comfortable Wear-Experience lasting quality with reinforced shoulder straps and a robust reinforced bottom. Thickened, breathable padding on the back and handles ensures comfortable carrying. Smooth, sturdy zippers provide reliable access-Versatile for Any Journey- Designed for business, weekend trips, college, or daily commutes, this multi-functional carry-on backpack adapts to your needs. Its thoughtful design and expandability make it a smart choice for various travel scenarios