The RapidPure® Pioneer Straw gives you the power to filter and purify water in an ultralight water purifier straw, perfect for hiking, backpacking, or traveling. This pocket-sized straw weighs just 2.6 oz. including the carry bag. More than a filter, the Pioneer removes over 99.99% of viruses, bacteria, parasites, sediment, and more. The UltraCeram® technology acts like a magnet to remove pathogens 100 times smaller than traditional microfilters can remove for unrivaled protection without any pumping, priming, or backflushing. Plus, the Pioneer continues to work even after it has been frozen.