Shoes Modern Marvels : Season 18 Episode 15

Shoes have come a long way from their humble beginnings as simple leather moccasins. Today footwear is built to withstand any extreme environment where a foot can tread — from the heart of a burning building to the track of an Olympic stadium. From high-tech soles to shoelaces, cowboy boots to sneaker design — step behind the scenes with the products that keep your feet covered.