4 18L Uberlight dry sacks for my pack and camp organization and 1 10L for my sleeping bag. I love them and they all weigh the same as one "normal" dry sack. They are not cheap though.
I have an 18L uberlight and a 20L Sea to Summit Nano dry sack. Total weight increase for 4 dry sacks is 2oz for the Nano over Uberlight and you will have $120 in your pocket. Ill carry the .5oz more to get the Nano sacks. But the Uberlight is UL for sure and it is nice they have the Event on the bottom.
I just saw a review on them in a magazine and started doing some research. I liked what I read and ignored the price. That's pretty much the norm for me on hunting gear, but I have a "problem." lol. They are certainly not for most.
I hear ya! I really like mine. Does it feel like a thin Tyvek to you? I was surprised how durable they are? I smashed my sleeping bag in one pretty good and no signs of stitches popping.