The frostbite armor is an armor set found in tears_of_the_kingdom. Lore-wise, it was used for ancient rituals relating to the ice dragon Naydra. In game, it grants the "cold weather attack up" effect. In cold weather, certain parts of the outfit light up and glow blue.

This specific outfit has gone popular since it has an open back, resembles a dress and even adds painted fingernails to the wearer.