618-Expandable business laptop backpack｜USB charging, water-resistant, extra 40% capacity for work & travel

This sleek expandable laptop backpack is built for modern businessmen, office workers and frequent travelers. It features an expandable design that increases storage capacity by 40%, switching easily between slim daily carry mode and large-capacity travel mode.
Equipped with an external USB charging port, you can charge your smartphone conveniently while on the move. Made of premium water-resistant and scratch-proof fabric, it protects your laptop and personal belongings from splashes and abrasion.
Multiple separate compartments neatly hold your 15.6-inch laptop, tablet, notebooks, power bank and daily essentials. Breathable padded back panel and cushioned shoulder straps reduce pressure for all-day comfort. The luggage strap on the back lets you fix it onto rolling suitcases during trips.
Simple minimalist style, perfect for work commute, business trips, school and weekend travel.

🎒 Expandable design, +40% extra storage space
🔌 External USB charging port for on-the-go charging
💧 Water-resistant & scratch-resistant durable fabric
💻 Multi-pocket layout, fits up to 15.6-inch laptop
☁️ Breathable padded back & shoulder straps
🧳 Luggage fixing strap for travel convenience