Nordstrom is currently offering the Adidas Originals National PrimeKnit Backpack for only $49.98 after a price drop from $100. You save 50% off the retail price for this Adidas backpack. Plus, this item ships free. We could not find a better price for this backpack online. The Adidas Originals National PrimeKnit Backpack features a two-way zip closure, top handle, exterior zip pockets, interior mesh zip pockets, and slip pocket. Sales tax is charged in most states. Deal expires soon.