By default, your wardrobe will be public. Public means other users on Fits can find your profile and see your clothes and outfits.
You can set your profile private. A private profile means none of your items are visible publicly. Only your approved followers can see your content. This works similar than a private profile on Instagram. Please note that your username, name and profile picture are always public so your friends can find and identify you before sending a follow request. To switch to a private profile, go to Edit profile > Private account and turn on the toggle.