A composition comprising an adjunct material and benefit agent delivery particles comprising a core, wherein the core comprises a perfume, and a shell, said shell encapsulating said core, said shell comprising: a) styrene maleic anhydride monomethylmaleate, and/or a salt thereof, said styrene maleic anhydride monomethylmaleate, and/or a salt thereof having one or more of the following properties: (i) a molar ratio of styrene to maleic anhydride of from 9:1 to 1:9; (ii) a weight average molecular weight of from 1,000 Da to 100,000,000 Da; (iii) a density of from 1.03 g/cm 3 to 1.11 g/cm 3; (iv) a hydrolysis degree of from 20% to 95%; b) a material selected from the group consisting of a polyacrylate, a polyethylene glycol acrylate, a polyurethane acrylate, an epoxy acrylate, a polymethacrylate, a polyethylene glycol methacrylate, a polyurethane methacrylate, an epoxy methacrylate and mixtures thereof; c) optionally: (i) an aminoplast polymer; (ii) a reaction product of one or more aromatic alcohols and one or materials comprising at least one aldehyde moiety; and/or (iii) the reaction product of melamine or a methylenediamine having the structure CH 2 (NH 2) 2, a material comprising one or more aldehyde moieties, an alkoxy ethanol and an acid d) optionally, a colloid; and e) optionally, an emulsifier said composition being a slurry of capsules, typically an aqueous slurry of capsules used in industry in the manufacture of various products, where the slurry of itself is not a consumer product. a) styrene maleic anhydride monomethylmaleate, and/or a salt thereof, said styrene maleic anhydride monomethylmaleate, and/or a salt thereof having one or more of the following properties: (i) a molar ratio of styrene to maleic anhydride of from 9:1 to 1:9; (ii) a weight average molecular weight of from 1,000 Da to 100,000,000 Da; (iii) a density of from 1.03 g/cm 3 to 1.11 g/cm 3; (iv) a hydrolysis degree of from 20% to 95%; (i) a molar ratio of styrene to maleic anhydride of from 9:1 to 1:9; (ii) a weight average molecular weight of from 1,000 Da to 100,000,000 Da; (iii) a density of from 1.03 g/cm 3 to 1.11 g/cm 3; (iv) a hydrolysis degree of from 20% to 95%; b) a material selected from the group consisting of a polyacrylate, a polyethylene glycol acrylate, a polyurethane acrylate, an epoxy acrylate, a polymethacrylate, a polyethylene glycol methacrylate, a polyurethane methacrylate, an epoxy methacrylate and mixtures thereof; c) optionally: (i) an aminoplast polymer; (ii) a reaction product of one or more aromatic alcohols and one or materials comprising at least one aldehyde moiety; and/or (iii) the reaction product of melamine or a methylenediamine having the structure CH 2 (NH 2) 2, a material comprising one or more aldehyde moieties, an alkoxy ethanol and an acid (i) an aminoplast polymer; (ii) a reaction product of one or more aromatic alcohols and one or materials comprising at least one aldehyde moiety; and/or (iii) the reaction product of melamine or a methylenediamine having the structure CH 2 (NH 2) 2, a material comprising one or more aldehyde moieties, an alkoxy ethanol and an acid d) optionally, a colloid; and e) optionally, an emulsifier said composition being a slurry of capsules, typically an aqueous slurry of capsules used in industry in the manufacture of various products, where the slurry of itself is not a consumer product.