Airport Friendly Boots are boots made without the use of steel in the construction, which makes them easily worn in airports. Airport Friendly Boots are easier to travel with because they can be worn through metal detectors at airports without being stopped.
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.