The Equinox Antonym Skin is a Deluxe Skin for .
The Equinox Antonym Skin is available for individual purchase for 165, or as part of the Equinox Antonym Collection for 225, which also includes the Circadian Syandana, and the Astreos Sword and Shield Skin.
To equip this skin, go to the "Arsenal" page, then click on Equinox's "Appearance" tab. The skin will be under the section labeled "Physique". The skin consists of two parts which can be equipped separately: the Helmet, which can be equipped under the Helmet tab, and the Body skin under the Skin tab.