Super High-Carb Sport Drink Mix is designed to solve a prevalent problem for endurance athletes: fueling for big days of training or racing when preparing or carrying real food isnt possible. Super High-Carb is powered by Cluster Dextrin, a highly-complex carbohydrate that digests easily and steadily, like real food. One serving of Super High-Carb provides 400 calories of energy.backed by the skratch labs guaranteelove it or your money back