We're calling it: Joan Smalls might be one of the fittest models out there. The Puerto Rican beauty [1] — and Puma rep — maintains her svelte figure with an impressively dynamic workout routine that's pretty well-documented [2] on her Instagram [3] — much to the delight of her near two million followers.

From her high-intensity kickboxing sessions to low-key bike rides through Brooklyn, NY, Joan is pretty much our dream workout buddy — aside from, of course, Jennifer Lopez [4], who would swiftly kick our butts into shape. Look ahead for all the sweat-inducing proof you need.