Asuna has long, orange-brownish chestnut hair and hazel eyes. In the early levels of SAO, she wore a dark red leather tunic with a lightweight copper breastplate and leather pants with boots up to the knees along with a hooded cape. After joining the , she wore a red and white uniform that all KoB members wear and wielded a rapier made by Lisbeth, called the . After the Ordinal Scale Incident, Asuna started wearing the promise ring given to her by Kazuto on her left ring finger.Asuna as Stacia, the Goddess of Creation, in Underworld.

Asuna’s avatar as Stacia, the Goddess of Creation, maintains her chestnut hair and light brown eyes.She wears a pearly-white breastplate and a long skirt consisting of countless fine fabrics.