Breathable AIRmesh upper for a lightweight fit and feel. Soft, flexible midfoot reinforcements for support and lockdown over the footbed. Removable insole for extra comfort. Full-length, L-Fan-shaped Wave midsole for supportive cushioning with every step. U4icX bottom layer for softer cushioning on impact. Mizuno Intercool full-length ventilation system allows cooling airflow to keep feet fresh and dry. X10 carbon rubber outsole for durable traction on any surface. Wt. 9.7 oz.