What Trail Runners Wear in Boulder, Colo.

On the Chautauqua Trail in Boulder, Colo., serious athletes take advantage of prime running time — in spite of freezing temperatures and the threat of snow. To tackle the rugged terrain, runners turn to feel-the-ground minimal styles from brands including New Balance and Patagonia, as well as protective shoes from category stalwart La Sportiva and up-and-comer Hoka One One.