You can easily connect your phone to the USB port, giving you a more convenient way to charge your phone while walking. Comfortable back design with soft padding, gives you maximum back support.Breathable and adjustable ergonomics S-shape padded shoulder straps relieve the stress of shoulder and neck. The inner and outer parts of the backpack are stitched by padeds, which brings physical protection to your items and can play an absolute protective role. KEYWORDS: Teacher Backpack, Weekender Backpack, Fashionable Backpack, Aesthetic Backpack, Backpack Trolls, Luggage Backpack for Travel, Business Bag, College School Backpacks, Durable Nice Backpacks, Large Capacity Backpack, Travel Adventure Backpack, Passenger Anti-Theft Backpack, Giveaway Backpack, Blank Amazon, Promotional Item.