The spandex content of best scrunch bum gym leggings is very high, which is “tighter and more elastic”. With them on, you will feel more close-fitting than ordinary sports pants. And the air permeability and perspiration are much better as well. The tight elastic material has better support for abdominal, back and arm muscles. Gym leggings contain different fabrics and have special knitting and cutting techniques to achieve gradient compression to reduce fatigue during exercise. They can also accelerate muscle recovery after exercise and reduce soreness. Ensuring elasticity and stretchability, meanwhile it can wrap muscles better. During exercise, wearing such leggings can reduce the risk of injury and improve sports performance.