 This product is designed to help protect your feet from the damaging effects of impact, shear and blistering common to participating in fitness regimens and workouts. Extra THOR•LON® provides a maximum fitness density padding to provde better durability, protection against shock, impact and shear forces. THOR•LON® top with added spandex provides comfort and better fit. Lightweight arch and lace padding with added spandex provides better fit and arch support. Contents: 83% THORLON Acrylic, 12% Stretch Nylon, 5% Spandex |