slacklining is an acrobatic sport that combines elements of tightrope walking, rock climbing and gymnastics. to set up the activity a tensioned line is set up between two anchor points, most commonly trees or large rocks - this creates a tightrope that is stretchy like a trampoline, allowing the athlete to bounce, flip, and use the full elasticity to their advantage.

the materials for slack lining can be found at any climbing store since they include tubular webbing and carabiners - modern slacklines tend to be flat, allowing a better foothold during stunts.