Expect to see these at the competitive runs this season. On We may earn revenue from the products available on this page and participate in affiliate programs. Learn more › Marathon super-shoes have spent five years in a foam arms race, each brand stacking a taller, lighter, springier midsole under its racers and hoping it still has life left at mile 23. On’s answer for 2026 rethinks the foam and, on its top model, skips the part of shoemaking most brands still do by hand.