Ocaso mini dress from Billabong. Short and sweet Billabong Ocaso mini dress that you can wear as-is or as a swimsuit cover-up. Cut in a mini silhouette with a slim-fit throughout and topped with a gradient colorblock design. An icon in the surf industry for decades, Australian brand Billabong got its start when founder Gordon Merchant started producing board shorts by hand in 1973. Now, they maintain a prominent presence among surfers, while also creating swimwear that looks just as good lounging on the beach as it does riding the waves.