Addnature has opened a new retail location in Stockholm targeting endurance sport enthusiasts.  Called Puls, the store carries products related to the sports of trail running, swim running, triathlon and cycling. Interest in endurance sports has increased dramatically in recent years in Sweden. Swim running has become somewhat popular in the Stockholm archipelago and other parts of the Nordic countries as a sport that involves swimming to an island, running across, swimming to the next, running, etc. 20 times over. Most athletes swim in their running shoes or put them in a bag that trails behind them as they swim.