Billabong Salty Waves Reversible Tie Side Skimpy Bikini Bottoms. Switch up your beach look with Billabong's reversible tie-side bikini bottom. Featuring adjustable side ties that let you wear it high or low on your hips, this skimpy-coverage style is crafted with partially recycled materials. The side ties ensure a perfect fit while subtle back embroidery adds a signature touch. Skimpy coverage. Reversible. Logo embroidery at wearer's center back. 78% Recycled Nylon 22% Spandex. Hand wash. Imported.