The outfit worn by members of the Diamond Clan in Pokémon Legends: Arceus.
It consists of a Blue Hoodie with a Dialga-themed hood, over what appears to be a black and blue Two-Tone Kimono, and a Brown Bag. The hoodie has the Clan's emblem on its chest. The male outfit has brown or Grey Pants while the female one has aqua and blue gradient Leggings. The outfit also has black and red Boots, which are longer in the male outfit.
While generic NPCs wear the same clothes, wardens wear variations of this outfit, mostly with some accessory, or pants or leggings with a different color.