The GEL-KAYANO 31 GS (Grade School) shoe creates a stable and comfortable underfoot experience for young feet.We also updated the midsole with FF BLAST PLUS ECO cushioning. With approximately 24% bio-based content, this material helps create cloud-like softness in every step.Lastly, the toe-rubber stitching and medial forefoot wrap-up outsole help to improve the shoe's durability.