The potato sack race game really is a classic probably dating back to as long ago as there were big empty sacks and children to play with them. It's a great source of fun and exercise for kids (including grown-up kids) at any outdoor occasion. The potato sack race bags is simple: Each racer puts both legs into their sack and then they all race by hopping; perhaps out to some marker and back. You'll want the race to be on a soft lawn or sandy beach, because stumbles and tumbles are an inevitable part of the fun. Under standard sack-race "rules" racers have to hop; running inside the bag isn't allowed. But running with your legs in the sack is hard too, so if you want you could have sack-running races as well as sack-hopping races. Another excellent variation on the regular race is to have a relay race. In this case the racers are divided up into two or more teams. Each team only uses a single sack, so after completing the course, the racing person has to get out of the sack and the next team member has to get into it as fast as possible.