Montce Swim Simonette Bikini Top in Black. - size XS (also in L, M, S, XL) Montce Swim Simonette Bikini Top in Black. - size XS (also in L, M, S, XL) 90% supplex 10% extra life nylon. Hand wash. Underwire cups. Back S-hook closure. Adjustable shoulder straps. Lightweight swimwear fabric. Item not sold as a set. MNTS-WX431. BT937. Montce's philosophy is that women should always feel chic, confident and comfortable. Designed to inspire confidence and compliments, Montce uses quality fabrics, nostalgic prints, and advanced construction details to make each bikini stand out. This effortless blend of style and substance, combined with an obsessive focus on fit, is what sets Montce apart.