Power shopping on Black Friday is one way to break a sweat, but sculpting a bum and abs worthy of the Victoria’s Secret runway show (taking place across the pond in London on December 2) requires a bit more than retail cardio. Here, Devon Windsor, Izabel Goulart, Romee Strijd, Constance Jablonski, and Eniko Mihalik show you how to earn your wings and shed yesterday’s feast.