Jr. Mercurial Vapor 15 Club Ic Soccer ShoesLearn all the skills and drills, and use them in your next game with the Nike Jr. soccer shoes. Made for use in indoor gyms and street courts, they have the traction you need to stop quickly and run up the court. The durable design is meant to hold up through every practice and every minute on game day. Contain Your Speed The speed cage inside is made of a thin but strong material that secures the foot to the plate without adding extra weight.