Sprint X is an invention of giving more flexibility to short distance amateur athletes's feet and increase excitement of speed for every training on track & field. Based on the research that wearing track spikes have the effect of boosting athletes's confident to run faster, they should be wore more often for training and not only during performance.
The noticeable part is the "Flex Lacing system" that athletes can adjust the lace's tension to fit their feet perfectly. The outsole is shaped with the attributes of sharp, silient, accurate and cool. Sprint X is using Primeknit as upper part, a single piece weave built for flexibility and strength, leaves a smooth lookSprint X is designed to shape the future of sprinter, be the gold medalist.