We don't need to tell you how important denim is as a casual staple in the modern woman's wardrobe. But, we are totally happy to point you in the right direction when it comes to what's on trend with in the celebrity and street style worlds. Well, there's a particular pair of Citizens of Humanity jeans—the high-waisted Liya style—that's so big with models they own it in more than one hue. Emily Ratajkowski was already spotted a few weeks ago wearing them in "extreme," a gray pair with slashed knees that she paired with a white crop top. This time, she wore them to the airport in the "distressed outsider" wash, a slightly darker, less distressed version, with ankle boots and a men's bomber jacket. This polished black iteration is a perfect transitional look for the more muted fall styling, but it has the same great high-waisted relaxed fit as the original pair. If you weren't convinced before, this is definitely a sign that you need a pair of these jeans in your life.