CrossFlowX™: Essentials for Busy People. 30 minutes. I know you are busy! Get all of your yoga essentials - strength, opening, mobility, flexibility, stabilization and more - with cardio thrown in for good measure in 30 minutes. Get ready for this jam packed flow that will leave you feeling OM-mazing! One yoga block helps this flow feel extra delicious. Deep breaths and ENJOY (and then get on with your day knowing you've moved in every way to feel your absolute BEST)!