bigwall_cl1010031wrote a review of Watershed Colorado 105L Dry Bag on October 10, 2017
Familiarity: I've used it several times
I bought the Watershed duffle to serve as the main dry bag on self supported multi-day white water river trips. It fits nicely behind the seat on my Aire Outfitter II IK. Due to the bomb proof zipless top closure, I was able to leave the bag mounted inside my IK during the entire five day river trip. The bag never leaked and the top closure allowed quick access to any of my gear. Inside the 6400 cu in bag, I had 5.5 days of water, fire pan, all my food, stove, and other gear. I highly recommend this dry bag as your primary system for multi-day river trips. The attached photo shows how it was mounted behind my seat and how easily you can access your gear through the top opening.