When Celine sent its first denim-on-denim look down its Spring 2020 runway in Paris last week, I interpreted it as a vivid harbinger for stylish outfits to come. Well, it's already arrived! None to soon, head-to-toe indigo has hit the streets of Paris, as evidenced here. Take note: jeans feature a new shoe-grazing length and straight-leg silhouette, like these by (I also love this ), , (also in this ), and . For denim shirts, the key is not too stiff and more p0lished than rugged. I'd go for these no-fail staples by , , and .