Main body material: polyester fiber Applicable people Applicable scenes: Health care massage, fitness and bodybuilding, chess and card entertainment, music instruments, sports trends, cycling sports, ice and snow sports, extreme challenges, hiking and camping, shooting sports, martial arts self-defense, sports protective gear accessories, dance sports, foot basket sports, Venue amusement equipment, sports outdoor bags, fishing sports, table tennis, table tennis, other ball sports, swimming and wading sports, other Specifications Knee pads S, knee pads M, knee pads L, knee pads XL, elbow pads S, elbow pads M, elbow pads L, elbow pads XL, children's knee pads XS, children's pads