Asics new seamless upper design features their new ldquospeed meshrdquo which combines with the thin tpu overlays to provide a sock like fit the new lightweight pebax spike plate features a more extended design with midfoot wraps which provide optimal support to help get you to the finish line faster finally an eva heel wedge provides extra cushion and greater versatility for sprinters who are seeking lightweight performance at 400m to 1000m and hurdles all of this at a great entry leve