Cole Haan's firstSUSTAINABLE sneaker, the Generation ZERGRAND II is created from the ground up using materials made from nature. This versatile style is designed with a minimum of 25% naturally derived or recycled content by weight and featuresCole Haan's patented FlowerFoam sole. Made with dandelions, yes, dandelions,Cole Haan's FlowerFoam sole provides all the lightweight cushioning to keeping you going and growing all day, every day.