BOPai Intelligent expandable large Smart 15.6 inch Backpack Travel Friendly Water Resistant Anti-Theft Laptop Rucksack with USB Charging Business Laptop Backpack Men Black Multi-Functional

Specifications

• INTELLIGENT INCREASE DESIGN - This backpack has smooth zippers on the back side. Once pull on the intelligent zipper, the invisible compartment will show up and equipped with extra 50% of space. Best choice for short journey and easy your daily life.
• PORTABILITY - The back sleeve design allows the backpack to slide over the luggage handle for easy mobility during traveling. Padded top handle is implemented on the backpack to allow comfortable carrying.
• ANTI-THEFT DESIGN - An invisible zip pocket on the back to place your iPhone, keys and wallet conveniently. Anti-explosion double zipper of main compartment is anti-slashing and water resistant, this would increase the security of your stuff inside.
• WATER-RESISTANT - This backpack is made of water-resistant microfiber leather and durable ballistic nylon materials. The massage and breathable design for back side prevents you from hot and sweating, so comfortable for your daily life. ( Best choice for you in travel,business,office )
• PROTECTIVE FUNCTION - Roomy backpack (11.8’’ L * 5.9 ‘’ W * 17.3’’ H) with laptop compartment (lined with soft flannel) protects 15.6’’ Laptop and iPad. As father's day gifts