The Fluidflow ‘Core Black’ makes use of a black and grey adaptive knit upper that molds to the foot, allowing for natural movement and a comfortable fit. The virtually seamless build is accented with contrasting white three-stripes and tonal pull tabs at the tongue and heel for easy on and off. The running shoe rides on a lightweight Bounce midsole, which works in concert with an OrthoLite sockliner for enhanced support and flexibility.