This Waterproof  anti theft backpack has external USB port with built-in charging cable offers convenient charging your cellphone by connecting your own power bank. The headphone port outside gives easy access to Earphone usage as well.

Our computer backpack is made of waterproof and high-quality polyester fabric. This college backpack features a double-sided smooth zip and reinforced stitching for durability. It provides more secure and protection for your items in the rainy days. Dual metal zippers are designed for your daily commute. Serve well as a durable travel backpack for men. And Breathable mesh back is perfect for comfortable carrying.

A luggage strap allows engineering backpack fit on luggage/suitcase, slide over the luggage upright handle tube for easier carrying;The Adjustable chest strap bring the shoulder straps in tighter to the chest, help you lock your backpack in place securely,prevent the shoulder straps from falling off.