En Noir's seemingly overnight success can be attributed to the design prowess of Rob Garcia and the fact that Kanye rocked his leather sweatpants and tank top in the music video for "Birthday Song." With a co-sign like that, it wasn't long before other celebrities got put onto the brand. Combining streetwear staples like T-shirts and sweats with luxe materials like leather, we got a behind-the-seams look at the construction and thought process that goes into each piece, and we can easily see how it practically became an overnight success.