Similar to tightrope walking, slacklining involves fixing a nylon or polyester webbed-rope between two anchor points and then using balance and skill to walk across. Slacklining is distinct from tightrope in the way that their names suggest _ while the tightrope is heavily taut, the slackline is usually flexible and bouncy. The slackline can be adjusted to suit the individualsê reference. There are many different styles of slacklining that range from simply walking from one side to the other, to performing a variety of tricks and skills on the line..