Usually called "sports vest" or "fitness vest". These clothes are usually made of lightweight, breathable and sweat-absorbent fabrics, which are suitable for exercise and fitness. Their design allows you to expose your abdominal muscles, show your figure lines, and make you feel more comfortable and free during exercise.

In addition, there are some close-fitting sports vests, which are usually called "compression clothes" or "compression vests". They can cling to the body, provide some pressure and support, and help to reduce muscle fatigue and improve sports performance.