Multi-layer Large Capacity Expandable Laptop Backpack

Large Expandable Laptop Backpack USB Port EXPERT FEATURES ✈ MULTIPLE COMPARTMENTS: business compartment with compartment pockets, internal patch pockets, pen position, not easy to mess electronic insert pockets with internal laptop and IPAD compartments clothing compartment for clothes, daily necessities, and books; front pockets for wallet, small items, easy to reach. ✈USB PORT DESIGN: external USB charger, built-in charging cable, more convenient to charge your mobile phone when walking or cycling. ✈ PREMIUM BREATHABLE MATERIAL: Laptop backpack 15.6 inches, made of durable oxford fabric and smooth metal zips. The back and straps are made of breathable foam mesh to reduce the pressure on your shoulders. ✈ THICKENING DESIGN TO EXPAND LARGE CAPACITY: DIMESIONS WHEN EXPANDED : 45 x 30 x 25 DIMESIONS WITHOUT EXPANSION : 45 x 30 x 15 Invisible zip design in the middle to expand the capacity, the capacity can be increased by 30%. ✈ PERFECT TRAVEL COMPANION: The laptop bag with luggage strap allows you to pull your luggage with one hand, perfect for college, temporary travel, work, business trips.