Gravity Defyer Men's GDEFY Mighty Walk Gray Men's Size 7.5 Great condition! $145 Retail VersoShock patented technology is clinically shown to relieve pain in the knees, by up to 85% Roomy 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 breathable mesh provides proper ventilation & flexibility