The KNX KNIT LACE children's low barefoot sneakers with speed measurement have a lightweight and flexible sole that offers a closer connection to the barefoot-style surface. The slight 4mm drop (heel to toe slope) will be appreciated by all those who are not fans of a strict minimalist sole. A durable, non-marking outsole with a low profile and a flexible foam midsole ensure maximum safety and comfort when moving in the city. The Contoured Fit cut naturally hugs the contours of a child's foot. The stretchy knit upper provides breathability and the microfiber insole wicks away moisture during everyday wear. Natural antibacterial technology Eco Anti-Odor without pesticides and other chemicals inside the shoe naturally reduces odor.