Classic Billabong bikini bottoms made special with side-tie detailing. Featuring a low-rise, high-cut leg, and adjustable side-ties for a personalized fit. 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.