Cole Haan's first sustainable sneaker, the Generation ZeroGrand 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 and features their FlowerFoam sole. Proprietary GrandFoam absorbs shock and provides rebound with each step. Propels you forward all day long. Enhanced Breathability: Multi layered breathable textile upper. Foam footbed foam for underfoot cushioning properties lightweight construction: Minimal upper design with a plush midsole and zonal rubber.