fujimaru ritsuka (female) (polar chaldea uniform)
Female Ritsuka's version of the Polar Chaldea Uniform worn as a Mystic Code in Fate/Grand Order, introduced into the story during the Russian Lostbelt to help the protagonist survive in severely cold conditions.
For Male Ritsuka's version, see Fujimaru Ritsuka (male) (Polar Chaldea Uniform).