A resin composition comprising (a) a polyphenylene ether resin, and further comprising: (b-1) a hydrogenated block copolymer, and/or modified product thereof, that is an at least partially hydrogenated product of a block copolymer including at least one polymer block A of mainly a vinyl aromatic compound and at least one polymer block B of mainly a conjugated diene compound and that has a peak molecular weight of 80,000 to 200,000 as measured as a standard polystyrene equivalent value by GPC, and (b-2) a hydrogenated block copolymer, and/or modified product thereof, that is an at least partially hydrogenated product of a block copolymer including at least one polymer block A of mainly a vinyl aromatic compound and at least one polymer block B of mainly a conjugated diene compound and that has a peak molecular weight of at least 10,000 and less than 80,000 as measured as a standard polystyrene equivalent value by GPC; (c) an olefinic polymer formed from an olefin other than propylene, and (d) a compatibilizer, wherein the (a) component forms a continuous phase, the polymer block B in the (b-1) component and the polymer block B in the (b-2) component have a glass transition temperature of -50°C or lower, the (c) component has a brittleness temperature of -50°C or lower, the (d) component is a hydrogenated block copolymer, and/or modified product thereof, that is an at least partially hydrogenated product of a block copolymer including at least one polymer block I of mainly a vinyl aromatic compound and at least one polymer block II of mainly a conjugated diene compound, total content of 1,2-vinyl bonds and 3,4-vinyl bonds relative to double bonds in conjugated diene compound units included in the (d) component is more than 50% and not more than 90%, the (d) component has a vinyl aromatic compound unit content of 30 mass% to 50 mass%, the polymer block II in the (d) component has a glass transition temperature of higher than -50°C, and percentage hydrogenation of double bonds in conjugated diene compound units included in the (d) component is 80% to 100%, the resin composition has a content of a polypropylene resin (g) of less than 0.1%, and the resin composition has a flexural modulus of 1,600 MPa or more as measured in accordance with ISO 178. (b-1) a hydrogenated block copolymer, and/or modified product thereof, that is an at least partially hydrogenated product of a block copolymer including at least one polymer block A of mainly a vinyl aromatic compound and at least one polymer block B of mainly a conjugated diene compound and that has a peak molecular weight of 80,000 to 200,000 as measured as a standard polystyrene equivalent value by GPC, and (b-2) a hydrogenated block copolymer, and/or modified product thereof, that is an at least partially hydrogenated product of a block copolymer including at least one polymer block A of mainly a vinyl aromatic compound and at least one polymer block B of mainly a conjugated diene compound and that has a peak molecular weight of at least 10,000 and less than 80,000 as measured as a standard polystyrene equivalent value by GPC; (c) an olefinic polymer formed from an olefin other than propylene, and (d) a compatibilizer, the (a) component forms a continuous phase, the polymer block B in the (b-1) component and the polymer block B in the (b-2) component have a glass transition temperature of -50°C or lower, the (c) component has a brittleness temperature of -50°C or lower, the (d) component is a hydrogenated block copolymer, and/or modified product thereof, that is an at least partially hydrogenated product of a block copolymer including at least one polymer block I of mainly a vinyl aromatic compound and at least one polymer block II of mainly a conjugated diene compound, total content of 1,2-vinyl bonds and 3,4-vinyl bonds relative to double bonds in conjugated diene compound units included in the (d) component is more than 50% and not more than 90%, the (d) component has a vinyl aromatic compound unit content of 30 mass% to 50 mass%, the polymer block II in the (d) component has a glass transition temperature of higher than -50°C, and percentage hydrogenation of double bonds in conjugated diene compound units included in the (d) component is 80% to 100%, the resin composition has a content of a polypropylene resin (g) of less than 0.1%, and the resin composition has a flexural modulus of 1,600 MPa or more as measured in accordance with ISO 178.