Clair has pale skin, blue eyes and light blue hair, tied in a ponytail with a beige hair band. Two large spiked fringes frame her face and point outward, and a third fringe rests in the center of her face between her eyes. She also has very thin eyebrows, and visible eyelashes.
Gold, Silver and Crystal
Clair wears a high-neck dark blue suit that extends to her thighs, with two shoulder pads, which have two yellow circles and a black cape on her back which its interior is red. Clair also wears a pair of dark blue fingerless gloves and a pair of dark blue shoes.
HeartGold and SoulSilver
Clair wears a black and maroon cape with beige shoulder pads, a two-tone blue and light blue skin-tight bodysuit, blue gloves with black bracelets on her wrists, and blue knee-length high heeled boots with black anklets. Clair also wears a blue gem on her neck, resembling a Dragonair's pearl, and beige earrings, shaped like a dragon's tooth.
Clair holds a great deal of pride in her appearance — much like Lance does. Her competitive and tough, prideful attitude is often seen as both inspirational and intimidating to some.
However, once she is defeated, Clair is a sore loser and initially refuses to award her Gym’s badge to the player character until she was convinced otherwise.
Her Gym badge is called the Rising Badge and the TM she gives the player character after beating her contains Dragon Breath. In Pokémon HeartGold and SoulSilver, it is Dragon Pulse. In her gym, the trainer must use the HM Strength to push the boulders into the lava, eventually making a path to Clair. In her Pokémon HeartGold SoulSilver gym, the player character must rotate and move a platform over a series of lava pits. In both the original and the remake games, Clair refuses to give the Rising Badge even after the player character beats her. She requires that the player character goes to the Dragon's Den in order to earn the badge. In w:c:pokemon:Pokémon Crystal, she still refuses to give the badge, but the player character goes to the Dragon's Den to pass the Dragon users' challenge instead. After that, she gives the badge, scared of what will happen if Lance was informed.
Clair's Gym title is "The Blessed User of Dragon Pokémon".