Running box jumps

Here are my crazy training partners, Tyler & Zack.  This was from our workout this morning.
Notice how Zack did the first video only in socks...PYSCHO.
In the 2nd video, they are jumping onto a 50 1/8" tall box.
Not sure how tall the first video was, but I know it was shorter.
Enjoy!
Grant Higa Bulky Boy strongman team