Adizero evo so - Sustainability: The upper is manufactured in an environmentally friendly way and consists of at least 20% recycled materials. Midsole: A full-length, single-layer of pure Lightstrike Pro cushioning foam. There are no carbon plates or EnergyRods installed. A minimal composite element (shank) in the midfoot provides slight torsional stability. Lining: Minimalist textile lining in the heel area for weight reduction. Outsole (two-component rubber): Forefoot area: Equipped with a robust pad made of Continental™ rubber (special Conti winter compound) for maximum grip in wet conditio...