asics DS LIGHT X-FLY 5 Used, but in good condition and still very usable. Size: 23.0cm In addition to the "barefoot feel" that is a characteristic of the DS LIGHT series, this model pursues improved heel hold. The shape of the heel counter has been updated to enhance stability, allowing for high performance even during intense movements. The heel counter is positioned to firmly hold the calcaneus, the largest bone in the heel. The thickness has also been adjusted to provide proper hold even when weight is applied to the heel. Platinum kangaroo leather is used for the upper (vamp) front. The internal foam material has been changed from low density to high density, and the thickness has been increased from 3mm to 4mm, pursuing a sense of luxury and softness to the touch. MOIS TECT processing is applied to prevent hardening even after use in rainy weather. The inner side of the sole has a concave design to weaken rigidity, while the outer side has a convex design to strengthen rigidity. A new design is adopted that allows for inward twisting while suppressing outward twisting, thanks to the balance of strength between the inner and outer sides.