More often than not, good backpacking bags are expensive. If you can find a large-capacity bag for under $100 – while not sacrificing quality – you should act on it. The REI Co-op Flash 65 is just that.
Filled to the brim with features like an internal frame, a 3D contoured hip-belt, and a ripstop nylon build, this pack is a great option for your next overnight or multi-day trip. It also packs a mesh back and shoulder-straps to incorporate generous airflow where your body meets the bag. Personally, I love bags that have exceptional airflow, ensuring you're comfortable your entire trip.
For half-off, this bag is a rock solid option for your next venture. You can grab it straight from REI while supplies last.