What makes the perfect latte? Traditionally speaking. it's 1/3 espresso to 2/3 steamed milk. Different baristas may tell you different things—and some baristas guard their secrets. Lucky for you. we won't. We think the world's best latte is this AJ1 High. Smooth leather in a perfect blend of black and tan hues is combined with swirling insole graphics inspired by artisan milk patterns. This is the shoe that warms your soul on a cloudy morning.