Product Description ◇ The GEL-KAYANO series has evolved further, providing stability from the heel to the midfoot. ◇ From light running to full marathons, the GEL-KAYANO 31 is designed to provide both excellent comfort and stability. The "4D GUIDANCE SYSTEM" provides adaptable stability. This foam part, placed on the inside of the midsole, helps to restore the arch to the proper position with each ground impact during running, supporting a more efficient run. In addition, the midsole is equipped with FF BLAST PLUS ECO cushioning. This foam material is approximately 24% bio-based, providing soft cushioning while being environmentally friendly. PureGEL technology is placed in the heel and is approximately 65% softer than the conventional visible GEL technology. By changing the upper from the previous knit to mesh, breathability has been improved. The outsole's midfoot combines ASICSGRIP, which has excellent grip, with AHARPLUS, which has excellent abrasion resistance in the toe and heel, creating HYBRID ASICSGRIP, which provides both excellent grip and durability. ■ Color (Manufacturer's notation): Black x Black (001) ■ Upper material: Synthetic fiber ■ Sole material: Rubber sole ■ Pronation: Neutral/Over ■ Production country: Indonesia ■ 2024 model