The Nike Free 5.0 Glow GS is a kids' sized take on the groundbreaking barefoot-inspired runner. This model features a lightweight mesh-woven upper with stabilizing Flywire cables that integrate with the laces. The Nike Free sole unit is rated a 5.0/10 on the Free scale, and thus designed to provide a feel that's halfway between barefoot running and wearing a neutral running shoe. The Free sole is lightweight and siped for flexibility.