Amazon offers the AmazonBasics 75L Internal Frame Hiking Backpack with Rainfly in Green for $40.12 $39.92 with free shipping. That's the lowest price we could find by $9. It features:
  • several pockets and compartments
  • sleeping-bag compartment
  • multi-directional compression straps
  • adjustable, padded shoulder straps
Note: it's available in Black for $41.01