83% nylon 17% spandex. Hand wash cold. Stretch fit. Ruched back detail. BTIN-WX100. 508BB. Bettinis bikinis fun, flirty and a full of life. Coming from the inspiration of North Carolina oceans, sand and seashells, Bettina gives a play on her name to create Bettinis so that every wearer can feel posh running down the beach.