GDEFY Mens 11.5 Gravity Defyer Mighty Walk Comfort Sneakers Shoes Black Gray11.5Excellent Preowned ConditionVersoShock® patented technologyRoomy Toe Box extra room for comfort and better blood circulation.Front Rolling Design designed to reduce foot stress by isolating 28 bones, 30 joints,and over 100 muscles from harm.Removable Insoles to accommodate custom orthotic support.Durable Breatable Mesh provides proper ventilation & flexibility.