When most people think of common street waste, they imagine abandoned cigarette butts, paper fliers, or old soda cans. Below this familiar layer of filth, there's another substance ground into the very sidewalk: chewed gum. In Amsterdam, gum is the city's second most common litter, after cigarettes.
A marketing organization called Iamsterdam paired with designer Explicit Wear and sustainability group Gumdrop to find a use for all this garbage and turn it into a usable material. Gumshoe was born.