G by GUESS Women's Kylee White Denim Strapless Front-Zip Bustier Top Go to amazon.com Related posts Check expert advices for bustier zip top? Feature97% Cotton, 3% SpandexMachine wash DescriptionLose the straps. White denim forms the perfect stretch fit on this denim bustier. Strapless design, sweetheart cut and full-length front zipper closure.