Running a marathon is no walk in the park. Training for one requires a plan, time, commitment, determination, and the best gear in the game. While the couch-to-5k runner may be able to throw on an old pair of running shoes and be good to go, there’s no winging solid preparation for a 26.2-miler—whether it’s your first marathon or your next PB breaker. You need reliable running gear to go the distance.