Get Up to 52% Off Backpacks and Luggage plus get free shipping on any order at REI.com. This is resulting in some great prices on top name-brand backpacks. For example, this Columbia Trip Wire Laptop Pack drops from $69 to $32.73 shipped, the lowest price we found by $7. It has a padded laptop compartment that fits devices up to 15" and is made of water- and stain-resistant ballistic polyester fabric. Sales tax is charged in most states.