Get ready for a six-pack abs and perfect posture workout with Jason Wimberly, founder of The Wall [1], an LA-based fitness studio that combines indoor cycling with serious strength training. Grab an exercise band if you've got one — no worries if you don't; the workout will still work you — and get ready to feel the burn.

Credits: On Jason, Ridge, Erica, and Michael: Vimmia for The Wall top [2] and custom tights by DYI for The Wall [3]; On Anna: Body Language top [4], Spanx bra [5], Athleta tights [6], and Athletic Propulsion Labs (APL) shoes [7]; Manduka Mats [8], and Corkcicle bottles [9]