Time and space. When you're in a different dimension, they don't matter at all. Open the door to extra-spatial speed in the adidas X Speedportal. adidas X SPEEDPORTAL MESSI.3 TF J children’s turf boots have a rubber outsole with studs to boost your speed on artificial turf. The coated textile upper has a reinforced knit collar and an external stabilising TPU heel.. The striking graphics reference Messi's lifelong love of football.