Duck Shoes are lace up, waterproof shoes with a flat, wide rubber vamp. They have gum rubber traction soles, low cut leather uppers, and are usually lined with an insulated material. Duck Shoes are designed for wear in rain, snow, slush and just about any cold or wet weather.
About Waterproof:
Waterproof materials deflect water, and cause the article to not become bogged or soaked with water. Waterproof material is common in outerwear, footwear, and bags.