An aerosol hairspray product for styling and/or shaping hair wherein the product comprises: i. a container comprising a container wall which encloses a reservoir for storing a hairstyling formulation and a propellant, ii. the hairstyling formulation comprising: a) at least about 50% water by total weight of the hairstyling formulation and propellant; and b) from about 0.01 % to about 20% of a hairstyling polymer by total weight of the hairstyling formulation and propellant; and iii. a compressed gas propellant; and iv. a spraying device attached to the container for dispensing the hairstyling formulation, the spraying device comprising: a spray nozzle for dispensing a fluid comprising a first element, preferably a nozzle cup, and a second element, preferably a pin, said first and second element (20, 22) forming an assembly comprising a fluid chamber, preferably a ring chamber, for receiving the fluid, at least one feeding channel for feeding the fluid from the fluid chamber radially inward into a swirl chamber and an outlet channel with an entrance end facing the swirl chamber and an exit end for discharging the fluid to the environment of the spray nozzle, characterized in that the outlet channel tapers in the flow direction of the fluid and the degree of tapering is either constant in the flow direction, or the degree of tapering decreases in the flow direction; and wherein a ratio of the sum of the cross-sectional areas of exit ends of the at least one feeding channel to the cross-sectional area of an exit end of the outlet channel is between 1.5 and 2.7, preferably between 1.7 and 2.6, wherein the product is substantially free of alcohol, or is substantially free of ethanol and/or propanol. i. a container comprising a container wall which encloses a reservoir for storing a hairstyling formulation and a propellant, ii. the hairstyling formulation comprising: a) at least about 50% water by total weight of the hairstyling formulation and propellant; and b) from about 0.01 % to about 20% of a hairstyling polymer by total weight of the hairstyling formulation and propellant; and a) at least about 50% water by total weight of the hairstyling formulation and propellant; and b) from about 0.01 % to about 20% of a hairstyling polymer by total weight of the hairstyling formulation and propellant; and iii. a compressed gas propellant; and iv. a spraying device attached to the container for dispensing the hairstyling formulation, the spraying device comprising: a spray nozzle for dispensing a fluid comprising a first element, preferably a nozzle cup, and a second element, preferably a pin, said first and second element (20, 22) forming an assembly comprising a fluid chamber, preferably a ring chamber, for receiving the fluid, at least one feeding channel for feeding the fluid from the fluid chamber radially inward into a swirl chamber and an outlet channel with an entrance end facing the swirl chamber and an exit end for discharging the fluid to the environment of the spray nozzle, characterized in that the outlet channel tapers in the flow direction of the fluid and the degree of tapering is either constant in the flow direction, or the degree of tapering decreases in the flow direction; and wherein a ratio of the sum of the cross-sectional areas of exit ends of the at least one feeding channel to the cross-sectional area of an exit end of the outlet channel is between 1.5 and 2.7, preferably between 1.7 and 2.6,