What is a steel shank in a boot? - bestnursingshoe
What Is A Work Boot Shank?
Amazon.com: TIDEWE Rubber Work Boot for Men with Steel Shank, Waterproof Anti Slip Hunting Boot, Warm 6mm Neoprene Hunting Mud Boot, Durable Black Rubber Boot for Farming, Gardening, Fishing, Size 5-14 :