Classic Travel Backpack Men Business Backpack School Expandable USB Bag Large Capacity Laptop Waterproof Fashion Backpack

• Large Capacity :The backpack has a spacious interior that can accommodate all your essentials, making it perfect for long trips or commutes. • Waterproof :The backpack is made of waterproof material, ensuring that your belongings stay dry even in wet conditions. • Expandable :The backpack has an expandable feature that allows you to add more items without compromising on comfort or space. • USB Port :The backpack comes with a USB port, allowing you to charge your phone or other devices on the go. Feature:High-density oxford material, waterproof and durable.External USB charging port with built-in charging cable is easily to charge your smart phone(only USB port, power bank not included).Can hold 15.6 inch laptop.Can expandable from 16cm to 23cm.Breathable, large capacity, anti-theft and mutifuctional interior compartment.Tie Rod fixing strap suit for suitcase.Note: 1. Manual measuring. please allow 1-3cm error, thank you 2. Due to the difference between dilferent monitors, thepi