ALL BIRDS SWEETFOAM : $25
The global footwear industry has a big carbon footprint, as companies burn energy manufacturing and transporting their product and use petroleum to make components like rubber soles. AllBirds wants to flip the script with its new Sweetfoam flip-flop, a sandal made from sugar cane. That material is carbon-negative, which means that it actually takes carbon out of the atmosphere rather than emitting it. AllBirds plans to soon use Sweetfoam in other footwear as well.
