The only difference between the regular single TigerLady and the running package is that the running package comes with two.
Runners have told us that they feel better with two on the run because TigerLady also works as running grips that relax the arms and shoulders and promote better form over time. It just so happens that TigerLady also provides claws if you need them.
Additionally, we offer a slight additional discount for each additional TigerLady built into the price of two.
Here's a recent Inside Edition piece on running safety that includes TigerLady