Material and Size: our casual laptop backpack with USB charging port is made of Durable Polyester / Water-resistant base material fabric which makes it sturdy and lightweight. The backpack SIZE is 18127'' (Weight:0.57KG/1.25LB), easy to organize all personal items and fit up to 17" inch laptops bag Backpack with charge port: USB Charger port is a convenient external connection, it offers an easy access to charge your devices. Keep up your phone and be on the go. This travel laptop backpack has multiple interior pockets that help you organize all your stuff to carry all essential items, such as clothes, iPad, umbrellas, books, bottles, tablet, laptop, etc. It is suitable for 3-7 days weekender or business trip, can be used as a carry-on flight bag. Human Engineering Design: Padded And Breathable mesh back panel of this computer bag design help for the air convection, ventilation and heat elimination. Breathable and adjustable shoulder straps relieve the stress of shoulder. Luggage / Suitcase strap on the back is designed to slide over the luggage tube and attached to your rolling luggage securely for easier transport. Don't have to carry the backpack on your back, less burden on your shoulder and back when on the go. Description This laptop bag fits up to 15-inch laptops. Made of nylon with a polyester lining, it comes in solid colors: gray, black, and blue. Designed for both men and women, it features an air-cushioned shoulder strap for comfort and a breathable construction.With a capacity ranging from 36 - 55L, it offers enough space for documents, tablets, and other essentials. The topstitching detail adds a touch of style. It’s suitable for business trips and daily commutes, combining functionality with a sleek, professional look.