These have the durability of a tactical boot combined with the comfort of a running shoe, and outdoor lugs designed to grip the harshest terrain. Plus, they're waterproof. What else do you need on the toughest trails?

How to Measure:
Under Armour starts with the true foot, which means they measure from heel to toe. That measurement (in centimeters) is then translated into their standard sizes. To find your foot measurement closely trace your entire foot onto a piece of paper and measure from heel to toe. If your measurement is between chart numbers, Under Armour recommend sizing up.