Excellent condition recycled materials sneakers. Lime green/hot pink. Women’s size 7.5. The Nike Waffle Racer Crater combines Crater Foam with Nike Grind rubber details for a rugged, track-inspired look, weighing in with at least 20% recycled materials. The Crater Foam midsole is made from a spacey mix of foam materials and 10% Nike Grind rubber, while the speckled Waffle outsole is made from 15% Nike Grind rubber, making each pair unique and durable.