REI offers the Mountain Hardwear Lander 15" Notebook Backpack in four colors (Flame pictured) for $39.93 with free shipping. That's the lowest total price we could find for any color by $13. Sales tax is added where applicable. It features padded shoulder straps, a zippered front pocket, two mesh pockets, main compartment capable of holding a laptop with up to a 15" screen, and more.

Of note, REI members can get it for $31.96 via coupon code "REWARDS20". Coupon expires April 15.