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.

MULTIPURPOSE – Roomy backpack (12.6’L*6.3’W*17.7’H) with laptop compartment (lined with soft flannel) protects 15.6′ Laptop and iPad. 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 or school )

MAIN MATERAL – Waterproof synthetic leather + microfiber. Handle: synthetic leather. Linnig material: polyester.