Tag: slackline

Slacklining Is the Hottest Way to Lift Your Booty You bet it works. By Elizabeth Narins Jul 10, 2017 Without a doubt, celebrity fitness trainer Gunnar Peterson, who’s widely known for training Khloé Kardashian, has some W-E-I-R-D-ass stuff in his gym, like this toilet positioned under a squat bar, foreseeably to promote proper form: MORE…