The difference is that the latter is casual and suitable for everyday wear, while the former is athletic and suitable for sports.

1, sweater was originally a kind of tooling, and later it evolved into clothes that are popular all over the world. Sweaters have a wide audience, because they have the function of reducing age, and they look young no matter how old they are.

2. Sportswear is mainly for sports. These clothes have more functions than sweaters. Sweaters are generally warm, and sportswear has the function of sweat absorption and ventilation.