You Also Might Like
RW+ Exclusive: How to Dress for Cold-Weather Runs
Jeff Dengate shares a simple formula to ensure you don’t overheat as the temperature drops.
Tool: What to Wear
Plug in a few details about the weather, and we’ll provide expert advice about picking the right gear.
RW+ Exclusive: Lefties Will Love the Hidden Feature on This GPS Running Watch
The Coros Vertix 2 can be worn on either wrist. We show you what settings to change.
Jeff is Runner-in-Chief for Runner’s World and the director of product testing. He has tested and reviewed running shoes, GPS watches, headphones, apparel, and more for nearly two decades. He regularly tests more than 100 pairs of shoes each year, and once had a 257-day streak running in different models. Jeff can usually be found on the roads, racing anything from the mile to a marathon, but he also enjoys racing up mountains and on snowshoes. When he’s not running, you’ll probably find him hanging from a ladder making repairs and renovations to his house (he’s also director of product testing for Popular Mechanics).