Makigumo's Kai Ni form.
See post #3319127 for winter ver. and post #4645614 for summer ver.
She starts out with the winter version of the Kai-Ni-Yuugumo-class uniform: A grey blazer over the standard Yuugumo-class uniform which now has a sheer black underskirt and her pantyhose being reduced to thighhighs in the same seamed style. She also switches from double buns to a crown braid. Distinctly though, her blazer has absurdly long sleeves like in her base form which cover her hands upon damage. However, while undamaged, said sleeves are folded just high up enough to expose her hands, already helped by the fact the sleeves of the dress shirt she wears underneath the blazer now stop halfway up the palms of her hands.
She later gets the standard Yuugumo-class summer uniform, consisting of a violet vest over a white short-sleeved blouse, a pleated purple skirt with a sheer black underskirt, black gauntlet-like fingerless gloves, and the abovementioned thighhighs. This however means that her hands are fully exposed in this uniform.
This tag implicates makigumo_(kancolle) (learn more).