PERFORMANCE FIT
This vertical flex groove helps runners move more comfortably. By bending the shoe sole to mirror the natural bend in the foot during running, the amount of stress is reduced.

This vertical flex groove helps runners move more comfortably. By bending the shoe sole to mirror the natural bend in the foot during running, the amount of stress is reduced.
ASICS GUIDANCE LINE™ technology promotes forefoot flexion across the MCP joints reducing soreness and increasing comfort. GUIDANCE LINE™ technology lets your foot and shoe work in unison for greater support and balance.
The arched bent groove shifts stress from the MP joint to the outer sole. This creates balance between the sole of the shoe where the foot bends and the motion of the heel raise.
Better Fit Groove placement promotes fit of foot to shoe
More Comfort from the arched bent groove support
Reduced Foot Stress with advanced sole structure alignment