Get our best running content delivered to your inbox
Subscribe to the FREE Competitor Running newsletter
Brian Metzler is the editor-in-chief of Competitor magazine. He has run more than 60,000 miles in his life, tested more than 1,200 pairs of running shoes, raced every distance from 50 yards to 100 miles and completed two Ironman triathlons. Email him at firstname.lastname@example.org.