Ideal for high-performance activity or extended casual wear, the adidas RapidaRun Knit J sneaker in 'Core Black' helps provide pillow-soft cushioning wrapped up in a flexible fit. Released in October 2018, this kids’ shoe features a flexible knit upper that forms to the shape of growing feet. TPU constructs the midfoot cage and heel counter for protective support. Underfoot, RapidaRun floats above plush Cloudfoam for responsive comfort.