Gymshark, the U.K.-based fitness apparel start-up, has set up North American headquarters in downtown Denver, according to the Denver Business Journal.

Peter Arch has been appointed general manager of GymShark North America.

According to the report, Gymshark’s sales reached more than £100 million ($124.8 million) in 2018, and is on track to exceed £180 million ($224 million) for the current year. Half of its sales come from North America.  Gymshark stands out for relying on social media influencers to market its products.