Bestbuy offers Targus - Octave Backpack for 15.6” Laptops - Black for $9.99 (orig. $34.99) with free store pickup or $5.99 shipping.  Shipping is free on orders over $35.

Product Description:

Padded 15.6" Latptop Pocket with Seconary compartment with built in workstation; Padded should strap and back panel; Two mesh water bottle pockets, Front Stash pocket; easy access cable pass through hole; reflective accents for increased visibility; comfortable carry handle