samuel b. roberts (swimsuit mode) (kancolle)
The bikini official alternate costume of Kantai Collection's Samuel B. Roberts, as seen in post #3570249.
Her swimsuit consists of a striped blue bikini, her white Dixie cup hat, and a red-white striped innertube with her hull number printed on it and two hull pieces attached.
This tag implicates samuel_b._roberts_(kancolle) (learn more).