The filtration in the Matador Hydrolite Hydration Backpack is made by Sawyer. The great thing about this filtration is it takes out pretty much all of the bad bacteria. The In-line assembled Sawyer® MINI water filter removes 99.99999% bacteria + protozoa for up to 100,000 gallons of water. It removes things that can cause stomach irritation and serious infections. It takes out fecal coliform(E-coli), giardia, and Cryptosporidium. When you are drinking out of streams and rivers, these are the most common molecules that can harm you. So not only is the water pack perfect for festival travel, but for any traveling! If you are going to a foreign country and you’re not so sure about the water, just run it through this! Or if you’re outside on a hiking trail, you can drink easy out of streams you may find knowing that you have this filtration system on your back! Check out the slide show to see all the steps to put water in your pack!