My son Aaron, ran his first marathon in June (Grandma’s Marathon) and he’s been bragging up on Crank Sports products for a while now. I began using your products over the summer, training for my first marathon. On October 7th, at age 53, I finished my first marathon running the hottest Twin Cities Marathon on record. I took your marathon challenge and as you guaranteed, I did finish my first marathon using your products. Thank you Crank Sports!