the metabolic capacity of crossfit boston was definitely exceeded in that video. ;)

John, Thanks. I'm going to try these tips out next time I'm at CF.

What is with the shoes? are they special double under shoes?

Thanks for the vid jon, I needed this one. Some of us still train our met con.

great video, will have give those tips a shot next time I'm at the gym

Jon thank you for your tips i was able to get my first double under because of them.

Keep up the amazing job.

Jon thanks for the instructional video. I personally have been having a tough time getting the form down, and the explanation of the wrist action helped out a lot. But now that I see and feel the difference between elbow and wrist rotation I think you left out one of the most important reasons for using proper form: rotating at the elbows just looks kinda gay. No offense to gay people.

Keep up the great work.

I can string together 10+ double unders now!

Thanks so much for this post. DU's are my next area of focus. Finally got my handstand push ups down.

Thanks for a great video!