Muzee Business Backpack for Men, Travel Laptop Backpack Fits 15.6 Inch, Waterproof Expandable Bag 25L-35L, Grey Work Daypack with USB & USB-C Charging Ports, Anti-Theft Pocket, Luggage Strap. 【Expandable Design for Versatile Capacity】 Features an expandable compartment that increases storage from 25L to 35L—perfect for adjusting between daily work use and short business trips. 【Fits 15.6" Laptop – Safe and Secure】 Includes a padded sleeve to protect laptops up to 15.6 inches, with shock-absorbing padding and internal straps to prevent shifting. 【Dual Charging Ports – USB & USB-C】 Stay powered wherever you go with built-in USB-A and USB-C ports, allowing easy access to charging your devices on the move (power bank not included).