Hip joint protection pad: Our protection pad installed 16MM high-density foam sponge hip joint pads on both sides of the hips, ischium, and crotch to reduce the impact force during falls or movements, thus protecting your body parts. In addition, In the middle of the buttocks are made of breathable and thick butterfly shaped mesh material,and 16MM high-resilience foam which is wear-resistant and non slip, and will not wear out due to long-term use. thus extending the lifespan of shorts.