AmazonBasics Internal Frame Hiking Backpack with Rainfly 65 L (green), $41, Amazon Prime

https://smile.amazon.com/gp/produ…UTF8&psc=1
4.4 stars, 270 reviews
Best Price according to CCC.
Save $4 if you get the used like new at AW.
Internal-frame backpack with 65 L capacity (60 L + 5 L extension collar); made of durable polyester; ideal for hiking and campingExtensive storage pockets and compartments; large sleeping-bag compartment; multi-directional compression strapsAdjustable straps and padded shoulder straps for a comfortable fit; open-cell foam lumbar pad and molded channels for lower-back support and airflowWater-repellent exterior coating and integrated water-resistant rainfly for light rain; waterproof cover included for heavier rain; choice of colorMeasures 30 inches long; backed by an AmazonBasics limited one-year warranty