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Salomon XA Tech Tee

$85, www.salomonrunning.com/us

Featuring a mesh bottom half that minimizes friction between your skin and pack, this lightweight shirt is ideal for long runs and fastpacking.

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Want to Know What It Takes to Finish at Western States? Just Ask Hellah Sidibe.

Find out what happened when this six-year run streaker and HOKA Global Athlete Ambassador took on an iconic ultramarathon in California's Sierra Nevada