A best bet is the Nike Hayward 29 Large Backpack in Blue (pictured) or Red for $32.97 with free shipping. That's a $22 drop and the lowest total price we could find by $8. It features padded, adjustable, and ventilated shoulder straps, molded back panel, dual-zip main compartment, two exterior front pockets, padded laptop sleeve, and more.
Of note, Nike is offering free shipping because it's "upgrading its systems". This will cause a delay in shipping of up to five days.