WaterWorks® T-Shirt

The filter that set new standards in backcountry water treatment.

The MSR® WaterWorks® microfilter, launched in 1991, was the first of its kind to combine both carbon and ceramic technologies into a single element, setting a new standard in reliable backcountry water treatment. Depicted as an engineering drawing on the WaterWorks Tee, it reminds us how crucial this elemental resource is to adventures pursued anywhere on earth.

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  • Tech T, WaterWorks, S, Blue$29.95 (USD)
  • Tech T, WaterWorks, M, Blue$29.95 (USD)
  • Tech T, WaterWorks, L, Blue$29.95 (USD)
  • Tech T, WaterWorks, XL, Blue$29.95 (USD)

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Available for U.S. addresses only.

Find the nearest stores that have stocked this product within the last six months by simply entering the city, state abbreviation, or postal code, and then clicking GO. We suggest you call the stores listed to confirm availability of the gear you want.


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  • Inside yoke of T-shirt explains WaterWorks filter’s significance in outdoor innovation.
  • Cotton
  • Regular Fit
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