Nike mercurial x vortex 3 junior indoor football trainers the nike mercurial x vortex 3 junior indoor football trainers benefit from a textured rubber sole ensuring you will have plenty of grip on any type of indoor surface these trainers also boast a textile lining alongside lace up fronts to ensure your feet always remain secure and comfortable the textured upper also adds an extra level of precision in passing shooting and when controlling the ball completing the look is the mercurial