The Nike Air Force 1 Crater is a new iteration of the model that is reimagined with Crater Foam, weighing in with at least 20% recycled materials. Not only is the Crate Foam eco-friendly, it’s also much more comfy than the traditional sole used on AF1s since it is made from a spacey mix of approximately 11% Nike Grind rubber and foam materials. Additionally, this model also comes equipped with a speckled outsole made from 15% Nike Grind rubber, making each pair unique and durable.