This week's Essentials feature buffed leather high-tops from Raf Simons trimmed in metallic silver - a futuristic update on an old favorite. Riccardo Tisci is channeling Man Ray with an X-ray graphic on a black sweater. Maison Martin Margiela puts a new spin on their house signature Replica sneakers, offered this season in all-over geometric stud detailing. Hedi Slimane heralds the return of grunge by means of a striped loose-knit scarf and a sleeveless sweatshirt with zip closures at the chest. And Acne’s Ace jeans - arguably the perfect black skinny - come with a light coating ideal for summer evenings and the advent of fall.