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[Improving your form to wear carbon shoes] Shoes: Asics MagicSpeed 4 I'm a trail runner who is training for the full marathon in the Mie Matsusaka Marathon in a month. I tried carbon shoes, but I'm struggling with my form. My calves are really tired, and I still can't get the advice from my coach... Does everyone get tired in their calves? lol #CarbonShoes #Marathon #MarathonForm #TrailRunner