Expandable Travel Backpack 40L-50L, Carry On Backpack with Waterproof Wet Pocket for Men Women, Extra Large Anti-Theft TSA Flight Approved 18 Inch Laptop Duffel Bag for Work Travel, Black

Specifications

• 【Expandable 40L-50L Design & 100% Lifetime Warranty】:Normal Size: 20 x 13 x 8 inch; Expanded Size: 20 x 13 x 10 inch， Purchase with confidence—this backpack is backed by a 100% Lifetime Warranty against any defects. The smart expansion zipper instantly transforms the bag's capacity. Keep it zipped in the standard 40L mode for air travel compliance, or unzip it to 50L when you need maximum storage for road trips or camping.
• 【High-Density Waterproof Wet Pocket】: Features a specialized waterproof compartment made from high-density material. It is perfect for separating wet towels, toiletries, or sweaty gym clothes from your clean, dry items. This dedicated "wet zone" ensures the rest of your luggage stays dry, organized, and odor-free.
• 【Flight Approved Carry-on (In Standard Mode)】: Designed to meet airline carry-on size limits specifically when in its compressed 40L state. It fits perfectly in overhead bins, helping you bypass baggage claim. Note: The expanded 50L mode provides maximum packing space but is best suited for train travel, road trips, or as checked luggage.
• 【18-Inch Laptop Protection & TSA Friendly】: The extra-large tech compartment features thick padding to securely protect gaming laptops up to 18 inches. The TSA-friendly design allows the laptop section to open 180 degrees flat, helping you pass through airport security scanners quickly without removing your device.
• 【Ergonomic Comfort & Anti-Theft】: Built for heavy loads, it features breathable mesh shoulder straps and a ventilated back panel to relieve pressure. A luggage strap allows it to slide over suitcase handles, and a hidden anti-theft pocket on the back keeps your passport and wallet safe and close to your body.