Glaceon is a quadruped mammalian Pokémon that bears a resemblance to an arctic fox. Its fur is a light-blue color, with diamond-shaped patterns on its back, tail, and ears in a darker shade of blue. Glaceon has a cerulean blue cap-like feature on its forehead with two long blue strips dangling from either side. It has a short feline muzzle with a small triangular nose along with long pointed ears. Glaceon's tail is long with a pointed dark blue diamond-shaped tip. It has small dainty paws and feet that are dark blue in color.

Glaceon's Shiny variation appears to have lighter fur, its diamond patterns being a darker blue and its cap-like feature is sky blue.