Sawyer Products Squeezable Pouch for Sawyer Squeeze Filter and Mini Water Filtration Systems Set of three 32-ounce replacement pouches for Sawyer Squeeze Filter and MINI water filters Can easily be filled in any lake or river, and under a faucet; attach directly to Sawyer water filter for direct drinking or filtering into containers Durable, lightweight, and collapsible for easy portability; great for hiking, backpacking, ultralight backpacking, camping, and emergency preparedness