THE LOOK Loose, low bun HOW TO Hairstylist Jen Atkin curled one-inch sections of the hair with a small iron, then worked in a dab of lightweight styling mousse to gently loosen the spirals. She pulled the hair into a low ponytail, twisted it into a bun and held it in place with pins. "Keep everything loose and low so it doesn't look too tight and done," she says. INSIDER TRICK To get a lasting hold without stiffness, Atkin recommends Frederic Fekkai Sheer Hold Spray. “The hair still holds but moves at the same time,” says Atkin. BUY ONLINE NOW Frederic Fekkai Sheer Hold Spray, $23; sephora.com.