Once users download the app, called FITS, they log in to their Spotify account, which gives ETT their listening data, since Spotify's API is open for developers.
They are then prompted to take a lifestyle quiz, which will provide the company with information like what type of field they work in as well as their skin color. Eison says these types of information are important because "we can't recommend you a suit if you work in a creative field, and we know different colors look better on different skin tones."
From there, ETT's algorithm sifts through a user's Spotify data and pairs music genres and favorite artists with styles. The user then looks through these suggested outfits, denoting likes and dislikes with happy and sad emojis. Finally, he's served up ETT pieces that Eison says will properly reflect the user's personality as well as personal style. And because all the company's menswear is made to measure, users can further customize each product, like choosing color pairings or materials.