A cosmetic agent for temporarily shaping keratinous fibres comprises a cosmetic preparation containing: at least one copolymer (a1) made up of at least the monomer units comprising (meth)acrylic acid, (meth)acrylic acid alkyl ester, and (meth)acrylic acid hydroxyalkyl ester； and at least one copolymer (a2) made up of at least the monomer units comprising N-tert-butylacrylamide, acrylic acid, and ethyl acrylate； with a weight proportion of the copolymers (a1) and (a2) based on the total weight of the cosmetic preparation of 10-30 wt.%. Preferably copolymer (a1) has the INCI name acrylates/hydroxyesters acrylates copolymer and copolymer (a2) has the INCI name acrylates/tert-butylacrylamide. Preferred compositions have good moisture resistance and the weight ratio of copolymer a1) to copolymer a2) is 1:3 to 3:1. The copolymer a2) is preferably used in neutralised or partially neutralised form with at least one alkanolamine (e.g. 2-amino-2-methylpropanol) preferably being used to achieve this. Ethanol and water preferably make up the A hairspray composition with 30-70% by weight of the cosmetic preparation and 30-70% by weight propellant is also outlined.
