While supers of the past (like Cindy Crawford) filmed full-on workouts in classic Reeboks and scrunch socks, today’s models offer a snippet of fitspo via 15-second Instagram videos. Kendall Jenner demonstrated how she earns her abs and tones her bum with Gunnar Peterson, while Gigi Hadid showed off the secrets to her knockout body in the ring at Gotham Gym (a go-to spot for girls like Sara Sampaio, Josephine Skriver, and Irina Shayk). Sure, it takes a hell of a lot more than a few sweat-filled seconds to achieve catwalk-worthy curves (like those that are sure to be seen on the upcoming Chanel and Victoria’s Secret runways), but it should be just enough time to convince you to get off the couch.