“Down Under” 40 Double Unders, 12 Burpees x3 50 Box Jumps (24/20″) 40 Double Unders, 12 Burpees x2 35 Box Jumps (24/20″) 40 Double Unders, 12 Burpees x1 20 Box Jumps (24/20″) Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to email a link to a friend (Opens in new window)