Don't know why it's called that, but this is the standard Es Kacang you'll find here, otherwise known as Es Campur. A very nice icy treat, and the one here is actually really special because they put in tape, or fermented tapioca. It has an acquired taste I'll admit, because the sour tang from the fermentation can be really strong, but my parents seem to really love it. For some, even the smell can be quite off-putting.