The Ballistic Rock Shield is a toughened, thermoplastic EVA (ethylene-vinyl acetate) sheath between the outsole and midsole that protects the forefoot by spreading out point loads from sharp objects.
The Ballistic Rock Shield is a toughened, thermoplastic EVA (ethylene-vinyl acetate) sheath between the outsole and midsole that protects the forefoot by spreading out point loads from sharp objects.