- For the suit of her Earth Two equivalent, see Killer Frost suit (Earth Two).
- "Caitlin's taste in clothes is just as bad as her taste in men."
- —Killer Frost complaining to Felicity Smoak and Iris West on Caitlin Snow for not having a suit[src]
The suit includes a long dark blue coat with silver details, which reaches down to a little bit below knee length. The coat is zipped up to form a corset-like top with a snowflake-like symbol in the middle of her waist, possibly featured as an "emblem" for the suit. It also has a dark blue dress underneath the coat and long dark blue boots that go up to her thighs.Caitlin eventually merged with her Killer Frost side and abandoned her alter-ego and her suit.  Killer Frost, then, started using a new suit in result of the other one getting destroyed.