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![](https://www.popsci.com/wp-content/uploads/2019/03/18/JRHOOVAJLSRZAROVPENAURZTYQ.jpg?w=1557)
Drop-in purification lets any vessel become a self-contained water-cleansing system. No matter who you are—or what mountaintop, elliptical machine, or TPS report you need to conquer—crisp, fresh-tasting H2O can go right along with you. Just fill any of these fine flagons at the nearest tap, and drink up.
![CamelBak Podium Chill Insulated Water Bottle](https://www.popsci.com/wp-content/uploads/2019/03/18/T4MVM23755EYUQBRLTSJKJSWMM.jpg?strip=all&quality=95)
![Geigerrig RIG 700M Hydration Pack](https://www.popsci.com/wp-content/uploads/2019/03/18/5S3GXYPXJVFJPUONEZK37IENP4.jpg?strip=all&quality=95)
![Hydrapak Stash Water Bottle](https://www.popsci.com/wp-content/uploads/2019/03/18/QZQQCKWYWKX4HTSGGJDXTDMISI.jpg?strip=all&quality=95)
![Hydro Flask Vacuum Insulated Stainless Steel Water Bottle](https://www.popsci.com/wp-content/uploads/2019/03/18/PH4WBQPXRIYHR5C7V2SYBT47TA.jpg?strip=all&quality=95)
![MIU COLOR 18.5 oz Glass Water Bottle](https://www.popsci.com/wp-content/uploads/2019/03/18/6MZ4YPYNKR5SSOESS7TSMKZSGA.jpg?strip=all&quality=95)
This article was originally published in the March/April 2017 issue of Popular Science, under the title “Carry Water.”