CrossFlowX™: Quick Posture Fix. 25 minutes. Good posture is one of the biggest visual signs of confidence. When you walk into a room, your posture should show how confident and amazing you are, before you even open your mouth to speak! This flow is full of posture improving moves. Open your chest, release your shoulders, strengthen your core and MORE! No props required for this one, unless you would like a yoga strap or towel for the various bow poses. Deep breaths, and get ready to look and feel confident!