Mountain Hardwear Lander Laptop Backpack for $35.93.  Select free ship to-store for in-store pickup at REI.  Otherwise shipping is $5.99 for a total $41.92 shipped, or free for orders over $50.  If needed, use this Filler Tool to qualify for free shipping. Here is a screenshot for your reference.  It features a panel-style opening that allows access to the interior of main compartment, zippered front pocket, mesh side pockets, and more.  Most places have this backpack for about $49.