COOLBELL Men's Business Backpack, Large Capacity, 30L, Fits 17.3-inch Laptops, Expandable, with TSA Lock, USB Charging, Waterproof, Perfect for

[VACUUM COMPRESSION - SPACE-SAVING, LIFTING WEIGHT] The included vacuum pump reduces the volume of your clothes by over 50%, making the Backvac Pro backpack perfect for air travel, camping, and short trips. [Expandable 60L Capacity - Pack More, Pack Lighter] This vacuum backpack fits within most airline carry-on restrictions (20" x 12" x 7.8") and offers the storage capacity of a 24" suitcase. No check-in lines or extra fees required. Just zip it up and board. [Smart Organization – Stay Organized on the Go] This travel backpack with a vacuum system features three spacious compartments, a waterproof pocket for wet clothes and shoes, and a padded laptop sleeve (fits 17-inch and 17.3-inch laptops). Perfect for work, workouts, or weekend getaways. [TSA Lock and Hidden Pocket - Travel with Confidence] The TSA-approved lock and discreet anti-theft pocket keep your valuables safe. Perfect for airports, subways, busy streets, and more. [ERGONOMIC COMFORT - LIGHT FOR LONG TRAVELS] Breathable mesh padding and wide, cushioned straps reduce strain on your shoulders and keep you cool while on the move. This travel vacuum backpack is designed for long walks, airport dashes, and all-day wear. [Note about the vacuum backpack zipper] The vacuum bag uses a high-density zipper to ensure airtightness. It may feel a little tight, but this is normal. Hold the bag firmly and apply constant pressure to open the zipper.