Going the distance? These are the shoes built to hold up past 20 miles. Maximum-stack marathon racers and super trainers with tall, energy-returning midsoles that keep your legs fresh deep into a long run - when fatigue, not fitness, is what slows you down. The Nike Alphafly 3, Adidas Adizero Adios Pro 4, Prime X 3 Strung and Hoka Cielo X1 2.0 are the shoes behind marathon PBs and world records. Every pair is 100% authentic, ships free, and is covered by our 30-day return policy.