Fashion may be equipped by going through the World Tree screen, then selecting a gumball and pressing the "Fashion" button.
Most fashion equips will have a slight additional effect, such as +1 Attack or +1 Power. See the Fashion category for a list of all Gumballs with equippable fashions, effects and where to get them, or select the gumball below.
You only gain fashion benefits in a maze for the main gumball.
In addition to base stats a gumball with a fashion equipped will also increase its contribution to Energy in Sky by 250.
Aoluwei's Blade Fashion outfits
Canas' Enlightenment Fashion outfits
Ranger's Song Fashion outfits
Abyss' Roar Fashion outfits