450 North Brewing Mermaid Dude Cup is a Sour Smoothie by style. Mermaid Dude Cup, part of the Collector Cup Series, is conditioned on Cara Cara Orange, Tangerine, Nectarine, Peach & Mandarin. This craft beer is 5.3% ABV. In this craft beer review, we will take a look at the color, smell, and taste.