The LifeStraw Personal Water Filter is the backup water solution that’s saved lives in disaster zones and backcountry emergencies for over 15 years. At 2 ounces and under $20, it’s the lightest, cheapest insurance policy against waterborne illness you can carry. Editor’s Pick If you only have time to skim — this is the gear in question. LifeStraw Personal Water Filter Check Price on Amazon → But is it actually reliable in real-world conditions? After reviewing field tests,