Slacklining is a favorite training activity for climbers when they aren't on the wall. Slacklining began in Yosemite during the 70’s. A slackline is a piece of webbing strung up between two trees, that people can try their luck at crossing and have some bouncy fun. Climbers often go back to their campsites after a day of climbing and play on these portable training systems. Slacklining trains your core, helps balance and increases flexibility. Slackline Industries is sharing the popular climbing past time with the world. Shop our selection of Slackline Industries slacklines and accessories today!