Nike mercurial vortex cr7 indoor court trainers junior the nike mercurial vortex cr 7 indoor court trainers are ideal for any youngster wanting to play like the superstar himself the trainers benefit from a padded ankle collar and cushioned insole to ensure a comfortable fit whilst the lace up fastening helps them remain secure whilst playing the boots are finished off with nike swoosh branding on the forefront and mercurial cr7 branding on the heel to complete the look trainers