Features & BenefitsCobraFIT has been carefully designed to achieve development in both cardiovascular and muscular conditioning through use of the H.I.I.T (High Intensity Interval training) and H.I.I.R.T (High Intensity Interval Resistance Training) principals. H.I.I.T is an exercise strategy alternating periods of short, high intensity exercise with short duration recovery periods to create fitness adaptations. H.I.I.R.T is a strategy that employs the same alternating periods of short intensity using a weight as additional resistance.The Cobra-Bags are small to extra-large sized, and built with toughness and durability to handle anything you can throw at them. The Cobra-Bags typically used in our class routines weigh between 4kg and 12kg. Most, if not all of the exercises that can be performed with kettle bells, dumbbells or barbells (and some that can’t) can be performed with a Cobra-Bag. The Cobra Bag offers movements that cannot be duplicated with any other tool & allows an individual to move all three planes of motion during a single movement!CobraFIT is based on an all-inclusive methodology where anyone can participate successfully in a class and can be progressed by using varying weight bags,alternative exercises, regression and variations. It encourages self-monitoring and offers clear benchmarks for self-improvement and development for every individual.