Putting a fresh twist on the 1977 OG, the Nike Waffle Racer Crater combines super-plush Crater Foam with Nike Grind rubber details for a rugged, athletics-inspired look, weighing in with at least 20% recycled materials. The Crater Foam midsole is made from a spacey mix of 10% Nike Grind rubber and foam materials, while the speckled Waffle outsole is made from 15% Nike Grind rubber, making each pair unique and durable.