BANGE Airback Anti-Theft Expandable Travel Backpack with Vacuum Compression

Vacuum compression design: vacuum seal design, with electronic vacuum pump, support suction and blowing, with night lighting function. Expandable capacity: The capacity is expanded from 22L to 35L, and the size is adjustable for easy storage. Multi-function carrying mode: portable or carrying, with top and side handles. Durable and secure: High-density zipper, chest strap and breathable shoulder strap design with TSA lock and anti-theft pocket. Multi-pocket design: Multiple pockets for organizing items, including 15.6-inch laptop compartments. Waterproof and scratch-resistant: The use of waterproof, scratch-resistant high-density Oxford cloth, but the zipper is not waterproof.