BB Dakota Kase Tank in Black. - size L (also in ) BB Dakota Kase Tank in Black. - size L (also in ) 55% modal 45% poly. Hand wash cold. Adjustable shoulder straps. Ruffle trim. BBDA-WS539. BI105513. BB Dakota is an eclectic shake up of the modern girl. We believe that fashion is about self-expression and taking risks, but more importantly, its about having fun. We design for the rule-breakers, the dreamers? BB Dakota supports the moment.