【Airline Approved & TSA Friendly】This men travel backpack works as a reliable carry on backpack and handy personal item backpack—your must-have travel essential for hassle-free journeys! It slides easily into overhead bins or under airplane seats, with a 180° full-opening design for quick security checks. Approved by Spirit, Frontier, JetBlue and other budget airlines, it’s your ideal pick for smooth travels 【50L Expandable Large Capacity】This handy 40L travel backpack is a unisex backpack for men & women and a protective laptop backpack. It expands flexibly from 40L to 50L, with 3 main compartments for laptops, clothes and toiletries. Expand it for 3-5 day trips, or collapse it into a lightweight commuter bag. 2-in-1 design avoids multiple bags—smart compartments keep small items organized and accessible 【Sturdy & Comfortable】This large carry on backpack for men is tear-resistant, water-repellent and ultra-durable for all trips. It also functions perfectly as a protective laptop backpack for men. Designed with breathable padded cushions and adjustable shoulder straps, it stays ultra-comfortable even during long hauls. Plus, smooth zippers and a thick, breathable padded back panel effectively ease shoulder fatigue, whether you’re on a long journey or short trip 【2 Extra Packing Cubes & Water-Repellent Design】This versatile backpack suitcase for travel includes 2 extra water-repellent packing cubes. Leakproof and perfect for storing wet clothes, towels or toiletries separately, they keep gear dry, pair with your sturdy travel laptop backpack, and fit your overnight bags and weekender bags for organized, hassle-free trips 【User-Friendly & Convenient Design】 This large travel bag doubles as a practical personal item travel bag, clever suitcase backpack and reliable luggage bag. Dual top/side handles let you switch seamlessly between backpack, handbag modes; the side pocket holds large bottles/umbrellas, and the back strap attaches to suitcases for stress-free trips Introducing the LOVEVOOK Men's Travel Backpack, a versatile, durable companion for frequent travelers—great for Europe trips, cruises or business. Flight-approved with 40L/50L expandable capacity (18x14x8 inches), it meets Frontier Airlines and major carriers' requirements, ideal as a men's personal item to skip checked baggage waits. This high-performance 40L/50L travel backpack offers flexible storage: 40L for 3-5 days of short-trip essentials, 50L expandable for long-haul souvenirs. Inside, a padded 17-inch laptop compartment and organized pockets (water bottle holders, quick-access front pocket) keep belongings neat and accessible. Water-repellent, wear-resistant material shields from light rain. Reinforced stitching, durable zippers and rubberized bottom boost longevity. Ergonomic design with S-shaped breathable shoulder straps and honeycomb back panel ensures comfortable, non-stuffy long carries. A multi-scene must-have: sleek design fits business/casual styles for airports, city tours and outdoors. Features adjustable chest strap, detachable waist belt, hidden luggage strap (for suitcase trolleys) and anti-theft back pocket. A top travel gift for men, the LOVEVOOK backpack blends practicality, durability and style. Reliable for air travel or adventures, backed by trusted LOVEVOOK quality—choose it for hassle-free, confident journeys