POWER CUSHION AERUS Z2 Men's - Blue GrayPOWER CUSHION AERUS Z MEN Color : Blue Gray Upper : Synthetic Fiber Outsole : Synthetic Resin Material : POWER CUSHION Yonex shoes tend to be 1 2 ~1 size tighter than regular sneakers. We recommend 1 2 ~ 1 size higher. POWER CUSHION Shock Absorption The YONEX Power Cushion absorbs shock then reverses the impact energy for smooth transfer into the next movement. Compared with urethane, the YONEX Power Cushion construction provides 3 times more shock