apGet your heart rate up with Supernatural coach Raneir Pollarda for a 30-minute standing cardio HIIT routine joined by Chelsey Ciolia and Leilani Terrisa. In this routine, you'll start with a quick warmup and work your way into squats, skaters, jumping jacks, fast feet, and more. This no-equipment routine will challenge you and leave you feeling accomplished. You won't even need a mat, just water and a towel. Be prepared to sweat!pbr pDon't miss new episodes of Class Fitsugar every Sunday and Wednesday on the POPSUGAR Fitness YouTube channela.