CrossFlowX™: Beginner Cardio Flow. 25 minutes. You have done the CFX Newbie Flow, but maybe not quiiiiiite ready for a full fledged CFX? This is your next stop! This beginner flow is one step up from the Newbie Flow, and once you have this down, you should be good to go to the shorter length full-fledged CFX flows! Grab 2 blocks, remember to laugh, enjoy, and BREATHE!