Bettinis Crop Top One Piece in White. - size S (also in ) Bettinis Crop Top One Piece in White. - size S (also in ) 83% nylon 17% spandex. Hand wash cold. Stretch fit. Cut-out waist. BTIN-WX211. 824. 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.