Introducing the Kiki de Montparnasse Mon Cheri Thong. Ist. Core. Helpers. StringHelper. RemoveHtmlTags("{@@=Ist. Core. Helpers. StringHelper. ToProperCase("Mon Cheri lace thong from Kiki de Montparnasse featuring black, cotton, sheer, pattern-lace detailing and stretch-design. Just a reminder that this piece must be tried on over your own garments. She is wearing a size S. Washing Instructions: Dry Clean Only. Composition and Material: 93% Polyamide, 7% Elastane.. Colour: red