Vacation dadcore was coined during the 2010s, describing what a dad wears on a tropical or resort-style holiday. Men's clothing of the 1970s and 1980s supplies the references, and comfort, practicality, and bold retro patterns run through all of it. The Hawaiian shirt is the essential garment. Functional bottoms go with it, cargo shorts or jeans. Sandals, flip flops, or white sneakers go below, with a Panama hat and aviator sunglasses.