Ebay offers Open Story 15" Laptop Backpack for $9 (reg $24) with free shipping.

Product Description:
Commute conveniently with the help of this Basics 17-Inch Backpack from Open Story. This backpack features a single compartment with an interior zip pocket, pen slots and a padded laptop sleeve that fits up to a 15-inch laptop. Plus, a cinch-cord closure with two outer buckle closures allow you to keep the contents securely packed. The front pocket with a hook-and-loop closure offers additional storage space, while the adjustable padded shoulder straps make carrying the backpack a breeze. Made of a 100% recycled polyester shell and water-resistant materials, it's designed in a solid hue to add a touch of style to your day trips or daily commute.
Open Story: Every journey inspires a new chapter.

• Dimensions (Overall): 17 Inches (H) x 12 Inches (W) x 6 Inches (D)
• Suggested Age: Adult
• Shell Material: 100% Recycled Polyester
• Bag Structure: Softside
• Interior Features: Padded Laptop Pocket
• Exterior Features: Front Zip Pocket
• Main Compartment Closure: Cinch-Cord Closure
• Capacity (Volume): 30 Liter
• Protective Qualities: Water-Resistant
• Fits Laptop: Up to 15 Inches
• Battery: No Battery Used
• Care & Cleaning: Spot or Wipe Clean