Kids ADIDASA(R) RAPIDARUN KNIT :: Give 'em a boost of confidence with the new Kids adidas RapidaRun Knit running shoe. Designed with an adaptive knit upper that naturally adjusts to your kid's foot shape pillow-soft cushioning and a running-specific outsole make their RapidaRun Knit a favorite on the field in P.E. class and on the playground.