I have had my 65l duffel for a full year now, and have had the chance to use it on several multi-day kayak excursions. So far I have floated the Current and Eleven Point rivers in Southern Missouri. Before I purchased the Vault duffel I relied on cramming everything into various roll top dry bags. Most of the time that resulted in small amounts of moisture seeping into the "dry" bags and having to deal with moist camping gear. This is no longer the case with the Vault. Everything I have packed into this bag has stayed bone dry. It straps down to my Jackson Loon 120 kayak perfectly and even allows me to bungee more gear to the top using the accessory loops. If I could give this bag 10 stars I would. It's everything I've ever wanted for my kayak camping needs. If I have to come up with a single complaint it would be the fact that I bought the black bag, and it gets scorching hot in the sun. So much so that I actually had the glued seams on my sleeping pad start to come apart. Next time I will just cover it with a towel or blanket to keep the direct sunlight off of it.