A hair styling composition comprising (a) one or more fully soluble polymer comprising, as polymerized units, (i) 30% to 75% by weight, based on the weight of said polymer, one or more monomer that has refractive index, as measured by ASTM Standard D1218-02, at 25°C, of 1.490 or higher, (ii) 1% to 30% by weight, based on the weight of said polymer, one or more acid-functional monomer, and (iii) 5% to 69% by weight, based on the weight of said polymer, one or more additional monomer, (b) solvent-propellant mixture comprising (i) 0% to 75% by weight, based on the weight of said solvent-propellant mixture, propellant, (ii) 5% to 95% by weight, based on the weight of said solvent-propellant mixture, volatile organic solvent, and (iii) 0% to 50% by weight, based on the weight of said solvent-propellant mixture, water, (c) neutralizing compound capable of neutralization of some or all of the acid groups contained in said polymer (a), wherein the mole ratio of said neutralizing compound to the acid-functional groups on said polymer (a) is from 0:1 to 1.1:1, and (d) one or more adjuvants, wherein the ratio of the total weight of all adjuvants to the weight of said polymer (a) is from 0:1 to 1.4:1, wherein the amount of said polymer (a) is 1% to 10% by weight based on the sum of the weights of said polymer (a) and said solvent-propellant mixture (b), wherein the amount of said solvent-propellant mixture (b) is 90% to 99% by weight based on the sum of the weights of said polymer (a) and said solvent-propellant mixture (b), wherein said propellant is gaseous at 25°C and one atmosphere pressure, wherein said volatile organic solvent is liquid at 25°C and is capable of dissolving polymer (a), and wherein said polymer (a) is produced by emulsion polymerization involving the use of one or more nonionic surfactant. (a) one or more fully soluble polymer comprising, as polymerized units, (i) 30% to 75% by weight, based on the weight of said polymer, one or more monomer that has refractive index, as measured by ASTM Standard D1218-02, at 25°C, of 1.490 or higher, (ii) 1% to 30% by weight, based on the weight of said polymer, one or more acid-functional monomer, and (iii) 5% to 69% by weight, based on the weight of said polymer, one or more additional monomer, (i) 30% to 75% by weight, based on the weight of said polymer, one or more monomer that has refractive index, as measured by ASTM Standard D1218-02, at 25°C, of 1.490 or higher, (ii) 1% to 30% by weight, based on the weight of said polymer, one or more acid-functional monomer, and (iii) 5% to 69% by weight, based on the weight of said polymer, one or more additional monomer, (b) solvent-propellant mixture comprising (i) 0% to 75% by weight, based on the weight of said solvent-propellant mixture, propellant, (ii) 5% to 95% by weight, based on the weight of said solvent-propellant mixture, volatile organic solvent, and (iii) 0% to 50% by weight, based on the weight of said solvent-propellant mixture, water, (i) 0% to 75% by weight, based on the weight of said solvent-propellant mixture, propellant, (ii) 5% to 95% by weight, based on the weight of said solvent-propellant mixture, volatile organic solvent, and (iii) 0% to 50% by weight, based on the weight of said solvent-propellant mixture, water, (c) neutralizing compound capable of neutralization of some or all of the acid groups contained in said polymer (a), wherein the mole ratio of said neutralizing compound to the acid-functional groups on said polymer (a) is from 0:1 to 1.1:1, and (d) one or more adjuvants, wherein the ratio of the total weight of all adjuvants to the weight of said polymer (a) is from 0:1 to 1.4:1, wherein the amount of said polymer (a) is 1% to 10% by weight based on the sum of the weights of said polymer (a) and said solvent-propellant mixture (b), wherein the amount of said solvent-propellant mixture (b) is 90% to 99% by weight based on the sum of the weights of said polymer (a) and said solvent-propellant mixture (b), wherein said propellant is gaseous at 25°C and one atmosphere pressure, wherein said volatile organic solvent is liquid at 25°C and is capable of dissolving polymer (a), and wherein said polymer (a) is produced by emulsion polymerization involving the use of one or more nonionic surfactant.