This is another backpack I use from time to time when fishing a river or stream. It is waterproof and has a roll-top closure, but what is unique about this pack is that it has a secure closure toggle system. This keeps it from unrolling.
Another nice feature that I use is the water bottle pockets on the sides. They are almost full length and easily hold one liter bottles.
The harness system is minimalist. There isn’t any padding on the back, other than the sit pad. Just pack carefully.
Also, on the back is a pocket for a removable sit pad.
Yet another nice feature is a removable Wet OR Dry bag. It has a built in roll-top pocket with a clear face for your phone or passport or whatever.
I like this pack since it is simple and relatively low-profile. Quality is great and I haven’t found any flaws or issues with it. Prices are all over the map but if you search online, you should be able to find them for around $80 US.
Just thought I’d share another option I use when fishing…
Velox Seeker 