Sports and fitness pants are worn when running, usually for long-term endurance exercise. The main purpose is to improve sports performance and promote recovery after sports. In addition, it also has the functions of stabilizing muscles, preventing thigh friction, promoting perspiration or heat preservation, sun protection, preventing venous thrombosis of lower limbs during long-term travel, and brightening.

Bodybuilding shorts, mainly in black, blue and green, are made of silk materials and suitable man-made fibers. They are very elastic, similar to dance pants, with wide top and narrow bottom, and the belt is tied around the waist or directly designed as a ring.