These are my go-to libraries for Python data crunching.

By some benchmarks, Julia code can run 10X to 1,000X faster than Python—but there’s a reason it’s not a very popular ...

While sunglasses technically fall into the “accessory” category of running gear, it’s pretty much a non-negotiable for me—even on overcast days, I want to protect my eyes (and the skin around them) ...

July 2026 Update: After testing the trail shoes released during the spring and comparing them to the best models reviewed in our Spring 2026 trail shoe guide, we’ve kept the Saucony Peregrine 16 as ...

A series where we find out which products the professionals (who really know what they’re talking about) actually use and really stand behind. Read more here. As a lifelong runner — from ...

Fed up of pounding the pavements or fancy testing your technical abilities? The right pair of trail running shoes can give you the underfoot security you need to explore woodlands, hills, mountains ...

We’ve been testing running shoes for Outside for over a decade. Every year, we test more than a hundred road and trail shoes. When people find out what we do, we’re often asked, “What’s the best shoe?

Running has been — and likely always will be — one of the most popular ways to get fit and stay active without a gym membership. In fact, since 2020, 59.1 percent of active adults say that exercising ...