Miner Boots, Rubber, Steel Toe, Size 10Pair Waterproof, closed cell neoprene and B Tek insulated sock 40C 40F comfort H6J14rated Oil and acid resistant rubber upper and outsole Rubber is extended to the top of the boot to increase protection from chemicals and the environment Internal metatarsal guard for protection in mining applications Cleated outsole design Comfort crafted insole CSA ASTM approved safety toe, plate and metatarsal protection with electric shock and electric hazard