Best In Class Material: Crafted From Premium 1220D Twill Polyester, This 40L Bag Features Multiple Compartments for Efficient Organization, Making It A Reliable Choice for Work and Overnight Travel. Expandable Bag with Side Lock: Designed for Convenience, This Bag Features An Expander, A Side Lock System, A Side Bottle Pocket, Three Main Compartments, Two Front Access Pockets, and A Side Handle for Easy Carrying. Industry Best Storage: Includes A Compartment for Clothes with Elastic Strap Locks, A Front Mesh Pocket, A Zippered Storage Pocket, and An Additional Compartment for Small Accessories Like Wallets and Pens. It Also Features A Retractable Key Holder, A Secret Pocket for Added Security, and A Back Strap To Easily Mount The Backpack On A Suitcase. Laptop Compartment: Features A Dedicated Laptop Compartment, A Separate Tablet Pocket and Expandable Storage for Added Convenience. Warranty: 12 Months Warranty Against Manufacturing Defects.