Sport Stacking is a fitness based sport that kids from all backgrounds and abilities can do. For the athlete and non-athlete alike, regardless if you are instructing eighth graders or kindergartners, sport stacking can be a great enhancement for your fitness routine. With over 70 fitness based activities, sport stacking helps to motivate kids to be active and fit. Teachers and parents also like sport stacking because it can be done at home. Much like a Scholastic book order encourages kids to read at home, a Group Order through Speed Stacks encourages fitness at home.