Alison Feller, 27, New York City
Marathoner Ali covers more than fitness on her blog. Readers appreciate how open she is about her experiences dealing with Crohn's disease, an inflammatory bowel condition.
Gym bag staple: "I exercise in short shorts, but my legs get chilly on the commute home. Thank goodness for my American Apparel leg warmers [$18, store.americanapparel.com]. Eighties trend to the rescue!"
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