More energy 6'' lace to toe internal met guard boot. Features composite toe, moisture wicking nylon lining, 100% non-metallic airport friendly, removable EVA cushion insert with adiPRENE by adidas. Shock absorbing heel and rebounding forepart pads. Dual density, direct attached PU midsole and rubber traction bottom with adiPRENE by adidas. Features Met Guard: A metatarsal guard is an appliance added to footwear, designed to provide additional protection to the instep area. Traditionally used in areas where there is a higher risk of objects falling or rolling onto the instep of the worker's foot. Material: Leather.