When folks see me come from the gym and they say, "whoa look at that dude. His arms are cut!" I like to think it's not because of the welts on my arms from failing at double-unders. Truth is I do have welts and double-unders are terribly painful if you fail at them.
15 MINUTE AMRAP
5 burpees, 10 renegade rows, 15 situps, 20 double-unders.
Really simple workout.