It started as the Haakaa, and then everyone made a version. The Ladybug, the Elvie Curve, the Boon Trove...what do they do and why would a breastfeeding mom use one? It's soft, pliable, and easy to clean! A Haakaa and all of its copycats are passive milk collectors that will start to work when your milk volume increases, as your mature milk starts to come in. The original, standard Haakaa is pretty cheap at $12, although different brands and fancier versions can be more expen