FULL REVIEW HERE: https://hikingguy.com/hiking-gear/rei-trail-40-review/
The REI Trail 40 is my go-to backpack for day hikes and weekend overnights. Finding the right daypack was tough, there were a lot options to sort out, but in the end, all of the REI Trail 40’s positives outweigh the minor downsides. The REI Trail 40 is as light as packs half its size, has plenty of room to store gear, and is well thought out with tons of practical features for anyone hitting the trail. Oh, and it works great as a carry-on bag for travel too. Here’s why I’m loving the Trail 40 aftermonths of testing.