According to SportsOneSource’s Matt Powell, Nike owned a share of 60% of the running shoe business in the United States during December. Despite the strong growth of companies like Brooks, Saucony and Mizuno, Nike’s dominance in the category shows how their shoe technology and edgy advertising continue to push Nike far ahead the competition.

In a recent tweet, Powell broke down the running shoe industry shares in December sales, as:

60% - Nike

12% - Asics

5% - Brooks & New Balance

3% - adidas and Reebok

1% - Under Armour

In another tweet, Powell wrote in response to one person’s observation of seeing most runners around him in Brooks, Asics and Sauncony, “Sounds like you are talking about real runners, not fashion. Brooks #1 with real runners. True runners only 10% of market.”

While it’s not clear what Powell meant by “real runners,” Brooks does own the strongest marketshare in the speciality running shoe business, while continuing their running-only focus with their products.

The running industry continues to grow stronger by the month. With new technologies, stronger marketing and collective growth in the fitness industry as a whole, running shoe companies should have a great 2013.