I am looking for lightweight drybag options. I have used garbage bags and pack covers for years but have recently switched to drybags. My outdoor activities involve rain, rivers and boats so I am only interested in drybags NOT waterproof stuffsacs. I need something I can buy that is already fully waterproof-not something I have to make or seam seal myself. I use OR drybags now. The smaller one that holds any size sleeping bag weighs 3oz. the larger bag that is more than twice that size is 7oz. I know this sounds like alot of weight but once I added up the weight of stuff sacs, garbage bags and pack cover it balances out. The OR bags are tough and are totally waterproof but I suspect there are some lighter options out there. I am a Weekend Weanie-section hiker not a THRU HIKER (I wish) so I can get away with no pack cover.