1Both the inside and outside of the legs are made of elastic rubber EVA, with cellular design, 360 degree flexible bending, uniform distribution, mutual support to effectively disperse the impact force, minimize the possibility of injury, and safety protection. 2The trousers are made of breathable, high-elasticity fabric, comfortable wearing, and fluorescent green stretch yarn for sewing, increasing the comfort and flexibility. 3High flexibility, quality fabric, exquisite workmanship, very professional. 4Suitable for skiing, roller skating, figure skating, etc. 54 different sizes for you to choose, meet your different needs.