Just when we thought we’d tried every plank out there, we found the hardest one yet

The seal walk is the modified plank variation that is *way* harder than its super-cute name would suggest. Here's how to do the move yourself.

alt
Photo: Getty Images/AleksandarGeorgiev

6 Seriously Strong Beginner Kettlebell Tips, According to Top Peloton Instructors

Get comfortable (and strong) with this clutch training tool.

Peloton instructor Jess Sims holds a kettlebell