This Superfood Smoothie Recipe Is Karlie Kloss's Secret to Giving Up Sugar

"I will never forget my first Carolina Herrera moment--I actually opened her runway show nine years ago!" says Karlie Kloss. We're seated in Herrera's spacious Midtown showroom, where the supermodel is celebrating her role as the face of Good Girl, the latest chapter in her long-running relationship with the house. "It's the last thing I do before walking out the door, just a spritz of perfume," she says of folding the tuberose-and-tonka-inflected scent into her morning ritual this year. What el...