We Now Have the Lab Data on Nike's Breaking2 Runners
Here's a quick and convenient way of finding out whether you're ready to run a two-hour marathon. Head to the track and run six laps (roughly 1.5 miles) at two-hour pace (4:34.6 pe…
Here's a quick and convenient way of finding out whether you're ready to run a two-hour marathon. Head to the track and run six laps (roughly 1.5 miles) at two-hour pace (4:34.6 pe…