HP Home & Office Store offers its HP Outdoor Sport Laptop Backpack in Blue/Green, model no. F4F29AA#ABL, for $25.99 with free shipping. That's the lowest total price we could find by $3. It measures approximately 12" x 8" x 19" and features a padded pocket for up to a 15.6" laptop, external water bottle pockets, internal organizer pocket, and padded shoulder straps.